71 lines
2.5 KiB
Diff
71 lines
2.5 KiB
Diff
This patch changes Guile to use a default search path relative to the
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location of the `guile' binary, allowing it to be relocated.
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diff --git a/libguile/load.c b/libguile/load.c
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index af2ca45..19dd338 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/private-gc.h" /* scm_getenv_int */
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@@ -255,6 +256,32 @@ 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/2.0");
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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/2.0/ccache");
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+
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env = 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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@@ -263,10 +290,7 @@ 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 = getenv ("GUILE_SYSTEM_COMPILED_PATH");
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if (env && strcmp (env, "") == 0)
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@@ -276,8 +300,7 @@ 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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