83 lines
2.9 KiB
Diff
83 lines
2.9 KiB
Diff
From 501ad55982a8f92a7a95c76c75944d644870181d Mon Sep 17 00:00:00 2001
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From: Ludovic Courtès <ludo@gnu.org>
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Date: Thu, 12 Mar 2020 15:16:04 +0100
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Subject: [PATCH] load: Make Guile run-time relocatable using /proc/self/exe.
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Import from
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http://git.savannah.gnu.org/cgit/guix.git/commit/?id=920f2c42ce3345dc1355a41377ebf01a33fdae51
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---
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libguile/load.c | 35 +++++++++++++++++++++++++++++------
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1 file changed, 29 insertions(+), 6 deletions(-)
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diff --git a/libguile/load.c b/libguile/load.c
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index c2ee5093a..128cdf95a 100644
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--- a/libguile/load.c
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+++ b/libguile/load.c
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@@ -26,6 +26,7 @@
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#include <string.h>
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#include <stdio.h>
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+#include <libgen.h>
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#include "libguile/_scm.h"
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#include "libguile/alist.h"
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@@ -325,6 +326,32 @@ scm_init_load_path ()
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SCM cpath = SCM_EOL;
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#ifdef SCM_LIBRARY_DIR
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+ char *program, *bin_dir, *prefix, *module_dir, *ccache_dir;
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+
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+ /* Determine the source and compiled module directories at run-time,
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+ relative to the executable's location.
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+
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+ Note: Use /proc/self/exe instead of argv[0] because the latter is
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+ not necessarily an absolute, nor a valid file name. */
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+
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+ program = scm_gc_malloc_pointerless (256, "string");
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+ readlink ("/proc/self/exe", program, 256);
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+
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+ bin_dir = dirname (strdupa (program));
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+
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+ prefix = scm_gc_malloc_pointerless (strlen (bin_dir) + 4, "string");
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+ strcpy (prefix, bin_dir);
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+ strcat (prefix, "/..");
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+ prefix = canonicalize_file_name (prefix);
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+
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+ module_dir = scm_gc_malloc_pointerless (strlen (prefix) + 50, "string");
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+ strcpy (module_dir, prefix);
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+ strcat (module_dir, "/share/guile/" SCM_EFFECTIVE_VERSION);
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+
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+ ccache_dir = scm_gc_malloc_pointerless (strlen (prefix) + 50, "string");
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+ strcpy (ccache_dir, prefix);
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+ strcat (ccache_dir, "/lib/guile/" SCM_EFFECTIVE_VERSION "/ccache");
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+
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env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_PATH"));
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if (env && strcmp (env, "") == 0)
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/* special-case interpret system-path=="" as meaning no system path instead
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@@ -333,10 +360,7 @@ scm_init_load_path ()
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else if (env)
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path = scm_parse_path (scm_from_locale_string (env), path);
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else
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- path = scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR),
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- scm_from_locale_string (SCM_SITE_DIR),
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- scm_from_locale_string (SCM_GLOBAL_SITE_DIR),
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- scm_from_locale_string (SCM_PKGDATA_DIR));
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+ path = scm_list_1 (scm_from_locale_string (module_dir));
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env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_COMPILED_PATH"));
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if (env && strcmp (env, "") == 0)
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@@ -346,8 +370,7 @@ scm_init_load_path ()
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cpath = scm_parse_path (scm_from_locale_string (env), cpath);
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else
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{
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- cpath = scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR),
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- scm_from_locale_string (SCM_SITE_CCACHE_DIR));
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+ cpath = scm_list_1 (scm_from_locale_string (ccache_dir));
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}
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#endif /* SCM_LIBRARY_DIR */
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--
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2.24.0
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