gnu: Replace hard-coded "CC=gcc" with CC-FOR-TARGET calls.

* gnu/packages/admin.scm (cbatticon)[arguments]<#:make-flags>: Use
CC-FOR-TARGET.
* gnu/packages/assembly.scm (dev86)[arguments]<#:make-flags>: Likewise.
* gnu/packages/cdrom.scm (cd-discid)[arguments]<#:make-flags>: Likewise.
* gnu/packages/crypto.scm (signify, keyutils, ssss, libscrypt, enchive)
[arguments]<#:make-flags>: Likewise.
* gnu/packages/emacs-xyz.scm (emacs-emacsql, emacs-telega)[arguments]
<#:phases>: Likewise.
* gnu/packages/gnupg.scm (pgpdump)[arguments]<#:make-flags>: Likewise.
* gnu/packages/image-viewers.scm (feh, imv)[arguments]<#:make-flags>:
Likewise.
* gnu/packages/image.scm (libjxr, giflib, freeimage)[arguments]
<#:make-flags>: Likewise.
* gnu/packages/irc.scm (ii, sic)[arguments]<#:make-flags>: Likewise.
* gnu/packages/lua.scm (make-lua-expat, make-lua-ossl, make-lua-sec)
(make-lua-cqueues, make-lua-lgi, lua-resty-signal)[arguments]
<#:make-flags>: Likewise.
* gnu/packages/networking.scm (httping, pixiewps, sslh, nethogs, spiped)
(can-utils, hcxtools, batctl)[arguments]<#:make-flags>: Likewise.
* gnu/packages/pdf.scm (fbida)[arguments]<#:make-flags>: Likewise.
* gnu/packages/ssh.scm (endlessh)[arguments]<#:make-flags>: Likewise.
* gnu/packages/toys.scm (nyancat)[arguments]<#:make-flags>: Likewise.
* gnu/packages/upnp.scm (miniupnpc)[arguments]<#:make-flags>: Likewise.
* gnu/packages/xdisorg.scm (bemenu, xbanish, sxhkd, xcape, xssproxy)
(xrandr-invert-colors, hsetroot, xsettingsd)[arguments]<#:make-flags>:
Likewise.

Signed-off-by: Tobias Geerinckx-Rice <me@tobias.gr>

gnu/packages/admin.scm

@@ -3062,7 +3062,7 @@ produce uniform output across heterogeneous networks.")
      `(#:tests? #f                      ; no tests
        #:make-flags
        (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
-             "CC=gcc")
+             ,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure))))         ; no configure script

gnu/packages/assembly.scm

@@ -228,7 +228,7 @@ It has macro abilities and focuses on operating system portability.")
     (build-system gnu-build-system)
     (arguments
      `(#:parallel-build? #f ; They use submakes wrong
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX="
                                          (assoc-ref %outputs "out")))
        #:system "i686-linux" ; Standalone ld86 had problems otherwise

gnu/packages/cdrom.scm

@@ -599,9 +599,9 @@ the data.")
                   #t))))
     (build-system gnu-build-system)
     (arguments
-     '(#:tests? #f
+     `(#:tests? #f
        #:phases (modify-phases %standard-phases (delete 'configure))
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX="
                                          (assoc-ref %outputs "out")))))
     (synopsis "Get CDDB discid information from an audio CD")

gnu/packages/crypto.scm

@@ -214,7 +214,7 @@ communication, encryption, decryption, signatures, etc.")
     ;; like OpenBSD's pledge().
     (arguments
      `(#:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
@@ -376,7 +376,7 @@ the wrong hands.")
     (arguments
      `(#:phases (modify-phases %standard-phases
                   (delete 'configure))          ; no configure script
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           "RPATH=-Wl,-rpath,$(DESTDIR)$(LIBDIR)"
                           (string-append "DESTDIR="
                                          (assoc-ref %outputs "out"))
@@ -469,7 +469,7 @@ no man page, refer to the home page for usage details.")
     (arguments
      `(#:tests? #f ; No test suite
        #:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
-                          "CC=gcc")
+                          ,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure) ; no configuration to be done
@@ -629,7 +629,7 @@ attacks than alternative functions such as @code{PBKDF2} or @code{bcrypt}.")
     (outputs (list "out" "static"))
     (arguments
      `(#:make-flags (list (string-append "PREFIX=" %output)
-                          "CC=gcc")
+                          ,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure)            ; no configure script
@@ -1070,8 +1070,9 @@ cannot sign messages in OpenBSD format yet.")
                 (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (arguments
-     '(#:tests? #f                      ; no check target         '
+     `(#:tests? #f                      ; no check target         '
-       #:make-flags (list "CC=gcc" "PREFIX=$(out)")
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
+                          "PREFIX=$(out)")
        #:phases (modify-phases %standard-phases
                   (delete 'configure)
                   (add-after 'install 'post-install

gnu/packages/emacs-xyz.scm

@@ -25357,7 +25357,7 @@ other @code{helm-type-file} sources such as @code{helm-locate}.")
              (lambda _
                (substitute* "server/Makefile"
                  (("CC=cc")
-                  "CC=gcc")
+                  ,(string-append "CC=" (cc-for-target)))
                  (("INSTALL_PREFIX=\\$\\(HOME\\)/.telega")
                   (string-append "INSTALL_PREFIX=" (assoc-ref %outputs "out")
                                  "/bin"))

gnu/packages/gnupg.scm

@@ -72,6 +72,7 @@
   #:use-module (gnu packages xml)
   #:use-module (guix packages)
   #:use-module (guix download)
+  #:use-module (guix utils)
   #:use-module (guix git-download)
   #:use-module (guix build-system gnu)
   #:use-module (guix build-system perl)
@@ -996,7 +997,7 @@ them to transform your existing public key into a secret key.")
     (arguments
      `(#:tests? #f ; no make check
        #:configure-flags (list "--prefix=/")
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "DESTDIR=" (assoc-ref %outputs "out")))))
     (inputs
      `(("zlib" ,zlib)))

gnu/packages/image-viewers.scm

@@ -89,10 +89,11 @@
                 "1d13x8hmvpdc5f5rj4l29ha7iz7wvqxjlvh6il04wq8igzrj0x23"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases (modify-phases %standard-phases (delete 'configure))
+     `(#:phases (modify-phases %standard-phases (delete 'configure))
        #:test-target "test"
        #:make-flags
-       (list "CC=gcc" (string-append "PREFIX=" (assoc-ref %outputs "out"))
+       (list ,(string-append "CC=" (cc-for-target))
+             (string-append "PREFIX=" (assoc-ref %outputs "out"))
              "exif=1"
              "inotify=1")))
     (native-inputs
@@ -579,7 +580,7 @@ displayed in a terminal.")
               (file-name (git-file-name name version))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases
+     `(#:phases
        (modify-phases %standard-phases
          (delete 'configure)
          (add-after 'install 'record-absolute-file-names
@@ -593,7 +594,7 @@ displayed in a terminal.")
                   (string-append bin "/imv-")))
                #t))))
        #:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "PREFIX=" (assoc-ref %outputs "out"))
              (string-append "CONFIGPREFIX="
                             (assoc-ref %outputs "out") "/etc"))))

gnu/packages/image.scm

@@ -457,8 +457,8 @@ lossless JPEG manipulations such as rotation, scaling or cropping:
                                        "libjxr-fix-typos.patch"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:make-flags
+     `(#:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              ;; A substitute* procedure call would be enough to add the -fPIC
              ;; flag if there was no file decoding error.
              ;; The makefile is a "Non-ISO extended-ASCII text, with CRLF line
@@ -890,7 +890,7 @@ JPEG 2000 Reference Software.")
     (outputs '("bin"                    ; utility programs
                "out"))                  ; library
     (arguments
-     '(#:make-flags (list "CC=gcc"
+     `(#:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX="
                                          (assoc-ref %outputs "out"))
                           (string-append "BINDIR="
@@ -1114,7 +1114,7 @@ supplies a generic doubly-linked list and some string functions.")
                         "0cwjxjz0f4gs6igvwqg0p99mnrsrwzkal1l2n08yvz2xq9s5khki"))))))))
    (build-system gnu-build-system)
    (arguments
-    '(#:phases
+    `(#:phases
       (modify-phases %standard-phases
         ;; According to Fedora these files depend on private headers, but their
         ;; presence is required for building, so we replace them with empty files.
@@ -1138,7 +1138,7 @@ supplies a generic doubly-linked list and some string functions.")
               (("-o root -g root") ""))
             #t)))
       #:make-flags
-      (list "CC=gcc"
+      (list ,(string-append "CC=" (cc-for-target))
             ;; We need '-fpermissive' for Source/FreeImage.h.
             ;; libjxr doesn't have a pkg-config file.
             (string-append "CFLAGS+=-O2 -fPIC -fvisibility=hidden -fpermissive "

gnu/packages/irc.scm

@@ -31,6 +31,7 @@
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix download)
   #:use-module (guix git-download)
+  #:use-module (guix utils)
   #:use-module (guix packages)
   #:use-module (guix utils)
   #:use-module (guix build-system cmake)
@@ -343,7 +344,7 @@ for the IRCv3 protocol.")
     (arguments
      `(#:tests? #f                      ; no tests
        #:make-flags (list (string-append "PREFIX=" %output)
-                          "CC=gcc")
+                          ,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure))))         ; no configure
@@ -367,7 +368,7 @@ for the IRCv3 protocol.")
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ; no tests
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX=" %output))
        #:phases
        (modify-phases %standard-phases

gnu/packages/lua.scm

@@ -215,7 +215,7 @@ some projects.")))
      `(#:make-flags
        (let ((out (assoc-ref %outputs "out"))
              (lua-version ,(version-major+minor (package-version lua))))
-         (list "CC=gcc"
+         (list ,(string-append "CC=" (cc-for-target))
                (string-append "LUA_LDIR=" out "/share/lua/" lua-version)
                (string-append "LUA_CDIR=" out "/lib/lua/" lua-version)))
        #:phases
@@ -356,7 +356,7 @@ directory structure and file attributes.")
      `(#:make-flags
        (let ((out (assoc-ref %outputs "out"))
              (lua-api-version ,(version-major+minor (package-version lua))))
-         (list "CC=gcc"
+         (list ,(string-append "CC=" (cc-for-target))
                "CFLAGS='-D HAVE_SYS_SYSCTL_H=0'" ; sys/sysctl.h is deprecated
                (string-append "prefix=" out)
                (string-append "LUA_APIS=" lua-api-version)))
@@ -417,7 +417,7 @@ binds OpenSSL's bignum, message digest, HMAC, cipher, and CSPRNG interfaces.")
        (let ((out (assoc-ref %outputs "out"))
              (lua-version ,(version-major+minor (package-version lua))))
          (list "linux"
-               "CC=gcc"
+               ,(string-append "CC=" (cc-for-target))
                "LD=gcc"
                (string-append "LUAPATH=" out "/share/lua/" lua-version)
                (string-append "LUACPATH=" out "/lib/lua/" lua-version)))
@@ -465,7 +465,7 @@ secure session between the peers.")
        #:make-flags
        (let ((out (assoc-ref %outputs "out"))
              (lua-api-version ,(version-major+minor (package-version lua))))
-         (list "CC=gcc"
+         (list ,(string-append "CC=" (cc-for-target))
                (string-append "LUA_APIS=" lua-api-version)))
        #:phases
        (modify-phases %standard-phases
@@ -657,7 +657,7 @@ describing the commented declarations and functions.")
     (build-system gnu-build-system)
     (arguments
      `(#:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
@@ -1014,7 +1014,7 @@ on numbers.")
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f ;TODO: Run the test suite.
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX=" %output))
        #:phases
        (modify-phases %standard-phases

gnu/packages/networking.scm

@@ -1339,7 +1339,7 @@ and min/max network usage.")
                 "0gh17kcxxi37k65zm4gqsvbk3aw7yphcs3c02pn1c4s2y6n40axd"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases
+     `(#:phases
        (modify-phases %standard-phases
          (delete 'configure)
          (add-before 'build 'fix-ifconfig-path
@@ -1357,7 +1357,7 @@ and min/max network usage.")
 test_parse_format_ipv(4(|_listen_all|_mapped_ipv6)|6)\\);")
                 ""))
              #t)))
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "prefix=" (assoc-ref %outputs "out")))
        #:test-target "test"))
     (inputs `(("net-tools" ,net-tools)
@@ -1639,7 +1639,7 @@ transmission protocol (SCTP) in a Go application.")
        ("ncurses" ,ncurses)
        ("openssl" ,openssl)))
     (arguments
-     `(#:make-flags (list "CC=gcc"
+     `(#:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "DESTDIR=" (assoc-ref %outputs "out"))
                           "PREFIX=")
        #:tests? #f)) ; no tests
@@ -1840,8 +1840,8 @@ allows for heavy scripting.")
                 "07nym6bqml0k9v29vnj003nrgnwrywgjvnljb7cdpsvnwilhbp64"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:make-flags
+     `(#:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases
@@ -2299,7 +2299,7 @@ library remains flexible, portable, and easily embeddable.")
        ("pcre" ,pcre)
        ("tcp-wrappers" ,tcp-wrappers)))
     (arguments
-     '(#:phases
+     `(#:phases
        (modify-phases %standard-phases
          (delete 'configure)            ; no configure script
          (add-before 'check 'fix-tests
@@ -2321,7 +2321,7 @@ library remains flexible, portable, and easily embeddable.")
                 (append (find-files "." "\\.cfg")
                         (find-files "scripts"))))
              #t)))
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           "USELIBCAP=1"
                           "USELIBWRAP=1"
                           (string-append "PREFIX=" (assoc-ref %outputs "out")))
@@ -2384,7 +2384,7 @@ the bandwidth, loss, and other parameters.")
      `(("libpcap" ,libpcap)
        ("ncurses" ,ncurses)))
     (arguments
-     `(#:make-flags `("CC=gcc"
+     `(#:make-flags `(,,(string-append "CC=" (cc-for-target))
                       ,(string-append "PREFIX=" %output)
                       ,(string-append "VERSION=" ,version))
        #:phases
@@ -2612,11 +2612,11 @@ returns the user name and other information about the connection.")
                 "04rpnc53whfky7pp2m9h35gwzwn6788pnl6c1qd576mpknbqjw4d"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:test-target "test"
+     `(#:test-target "test"
        #:make-flags (let* ((out (assoc-ref %outputs "out"))
                            (bindir (string-append out "/bin"))
                            (man1dir (string-append out "/share/man/man1")))
-                      (list "CC=gcc" ; It tries to invoke `c99`.
+                      (list ,(string-append "CC=" (cc-for-target)) ; It tries to invoke `c99`.
                             (string-append "BINDIR=" bindir)
                             (string-append "MAN1DIR=" man1dir)))
        #:phases
@@ -3035,7 +3035,7 @@ from user-space.  It requires a kernel built with SocketCAN support.")
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; No tests exist.
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX="
                                          (assoc-ref %outputs "out")))
        #:phases
@@ -3288,7 +3288,7 @@ Ethernet and TAP interfaces is supported.  Packet capture is also supported.")
        ("zlib" ,zlib)))
     (arguments
      `(#:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "INSTALLDIR=" (assoc-ref %outputs "out") "/bin"))
        #:tests? #f                      ; no test suite
        #:phases
@@ -3646,7 +3646,7 @@ written (and providing API) in C.  Current implementation covers YANG 1.0 (RFC
       (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
             (string-append "PKG_CONFIG=" (assoc-ref %build-inputs "pkg-config")
                            "/bin/pkg-config")
-            "CC=gcc")))
+            ,(string-append "CC=" (cc-for-target)))))
    (home-page "https://www.open-mesh.org/projects/batman-adv/wiki/Wiki")
    (synopsis "Management tool for the mesh networking BATMAN protocol")
    (description "This package provides a control tool for the

gnu/packages/pdf.scm

@@ -1135,7 +1135,7 @@ information for every pixel as the input.")
                 "0f242mix20rgsqz1llibhsz4r2pbvx6k32rmky0zjvnbaqaw1dwm"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:phases
+     `(#:phases
        (modify-phases %standard-phases
          (add-after 'unpack 'patch-FHS-file-names
            (lambda _
@@ -1144,7 +1144,7 @@ information for every pixel as the input.")
                (("/sbin/ldconfig -p") "echo lib")) #t))
          (delete 'configure))
         #:tests? #f
-        #:make-flags (list "CC=gcc"
+        #:make-flags (list ,(string-append "CC=" (cc-for-target))
                            (string-append "prefix=" (assoc-ref %outputs "out")))))
     (inputs `(("libjpeg" ,libjpeg-turbo)
               ("curl" ,curl)

gnu/packages/ssh.scm

@@ -878,8 +878,8 @@ of existing remote shell facilities such as SSH.")
          (base32 "0ziwr8j1frsp3dajr8h5glkm1dn5cci404kazz5w1jfrp0736x68"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
+     `(#:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
-                          "CC=gcc")
+                          ,(string-append "CC=" (cc-for-target)))
        #:tests? #f                      ; no test target
        #:phases
        (modify-phases %standard-phases

gnu/packages/toys.scm

@@ -219,7 +219,7 @@ and various scenery elements.")
           "1mg8nm5xzcq1xr8cvx24ym2vmafkw53rijllwcdm9miiz0p5ky9k"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:make-flags '("CC=gcc")
+     `(#:make-flags '(,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (delete 'configure) ; no configure script

gnu/packages/upnp.scm

@@ -61,11 +61,11 @@
      ;; The build system does not use a configure script but depends on
      ;; `make'.  Hence we should pass parameters to `make' instead and remove
      ;; the configure phase.
-     '(#:make-flags
+     `(#:make-flags
        (list
         (string-append "SH=" (assoc-ref %build-inputs "bash") "/bin/sh")
         (string-append "INSTALLPREFIX=" (assoc-ref %outputs "out"))
-        "CC=gcc"
+        ,(string-append "CC=" (cc-for-target))
 
         ;; Allow executables to find libminiupnpc.so.
         (string-append "LDFLAGS=-Wl,-rpath="

gnu/packages/xdisorg.scm

@@ -269,8 +269,8 @@ used to further tweak the behaviour of the different profiles.")
         (base32 "1fjcs9d3533ay3nz79cx3c0lmy2chgragr2lhsy0xl2ckr0iins0"))))
     (build-system gnu-build-system)
     (arguments
-     '(#:tests? #f
+     `(#:tests? #f
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           "CFLAGS=-O2 -fPIC"
                           (string-append "LDFLAGS=-Wl,-rpath="
                                          (assoc-ref %outputs "out") "/lib")
@@ -892,7 +892,7 @@ to find buttons, etc, on the screen to click on.")
     (build-system gnu-build-system)
     (arguments
      `(#:tests? #f                      ; no tests
-       #:make-flags (list "CC=gcc"
+       #:make-flags (list ,(string-append "CC=" (cc-for-target))
                           (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases (modify-phases %standard-phases
                   (delete 'configure)))) ; no configure script
@@ -1071,7 +1071,7 @@ Guile will work for XBindKeys.")
      `(#:phases (modify-phases %standard-phases (delete 'configure))
        #:tests? #f  ; no check target
        #:make-flags
-       (list "CC=gcc"
+       (list ,(string-append "CC=" (cc-for-target))
              (string-append "PREFIX=" %output)
              ;; Keep the documentation where the build system installs LICENSE.
              (string-append "DOCPREFIX=" %output
@@ -1184,7 +1184,7 @@ within a single process.")
        #:phases (modify-phases %standard-phases (delete 'configure))
        #:make-flags (list (string-append "PREFIX=" (assoc-ref %outputs "out"))
                           "MANDIR=/share/man/man1"
-                          "CC=gcc")))
+                          ,(string-append "CC=" (cc-for-target)))))
     (inputs
      `(("libxtst" ,libxtst)
        ("libx11" ,libx11)))
@@ -1553,7 +1553,7 @@ demos.  It also acts as a nice screen locker.")
     (arguments `(#:make-flags `("bindir=/bin"
                                 "man1dir=/share/man/man1"
                                 ,(string-append "DESTDIR=" (assoc-ref %outputs "out"))
-                                "CC=gcc")
+                                ,,(string-append "CC=" (cc-for-target)))
                  #:phases (modify-phases %standard-phases
                             (delete 'configure)
                             (delete 'check))))
@@ -2102,7 +2102,7 @@ to automatically turn it on on login.")
                 "1br3x9vr6xm4ika06n8cfxx1b3wdchdqvyzjl4y1chmivrml8x9h"))))
     (build-system gnu-build-system)
     (arguments
-     `(#:make-flags (list "CC=gcc")
+     `(#:make-flags (list ,(string-append "CC=" (cc-for-target)))
        #:tests? #f ; there are none
        #:phases
        (modify-phases %standard-phases
@@ -2407,7 +2407,7 @@ Xwrits hides itself until you should take another break.")
     (arguments
      `(#:scons ,scons-python2
        #:scons-flags
-       (list "CC=gcc")
+       (list ,(string-append "CC=" (cc-for-target)))
        #:phases
        (modify-phases %standard-phases
          (add-before 'build 'patch-sconstruct
@@ -2762,7 +2762,7 @@ and execute @file{.desktop} files of the Application type.")
      `(#:tests? #f
        #:make-flags
        (list
-        "CC=gcc"
+        ,(string-append "CC=" (cc-for-target))
         (string-append "PREFIX=" (assoc-ref %outputs "out")))
        #:phases
        (modify-phases %standard-phases