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Search path environment variables for cross-compilers. See the discussion
at <http://gcc.gnu.org/ml/gcc/2013-02/msg00124.html>.
Note: Touch 'C_INCLUDE_PATH' et al. rather than 'CPATH', as discussed
at <http://bugs.gnu.org/22186>.
diff --git a/gcc/gcc.c b/gcc/gcc.c
index eced0d5..08dec2b 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -4317,7 +4317,7 @@ process_command (unsigned int decoded_options_count,
}
temp = env.get (LIBRARY_PATH_ENV);
- if (temp && *cross_compile == '0')
+ if (temp)
{
const char *startp, *endp;
char *nstore = (char *) alloca (strlen (temp) + 3);
diff --git a/gcc/incpath.c b/gcc/incpath.c
index 98fe5ec..96aff65 100644
--- a/gcc/incpath.c
+++ b/gcc/incpath.c
@@ -461,8 +461,8 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
int stdinc, int cxx_stdinc, int verbose)
{
static const char *const lang_env_vars[] =
- { "C_INCLUDE_PATH", "CPLUS_INCLUDE_PATH",
- "OBJC_INCLUDE_PATH", "OBJCPLUS_INCLUDE_PATH" };
+ { "CROSS_C_INCLUDE_PATH", "CROSS_CPLUS_INCLUDE_PATH",
+ "CROSS_OBJC_INCLUDE_PATH", "CROSS_OBJCPLUS_INCLUDE_PATH" };
cpp_options *cpp_opts = cpp_get_options (pfile);
size_t idx = (cpp_opts->objc ? 2: 0);
@@ -473,7 +473,7 @@ register_include_chains (cpp_reader *pfile, const char *sysroot,
/* CPATH and language-dependent environment variables may add to the
include chain. */
- add_env_var_paths ("CPATH", BRACKET);
+ add_env_var_paths ("CROSS_CPATH", BRACKET);
add_env_var_paths (lang_env_vars[idx], SYSTEM);
target_c_incpath.extra_pre_includes (sysroot, iprefix, stdinc);
diff --git a/gcc/system.h b/gcc/system.h
index 0cbf60a..3242c68 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -1169,4 +1169,6 @@ helper_const_non_const_cast (const char *p)
/* Get definitions of HOST_WIDE_INT. */
#include "hwint.h"
+#define LIBRARY_PATH_ENV "CROSS_LIBRARY_PATH"
+
#endif /* ! GCC_SYSTEM_H */
diff --git a/gcc/tlink.c b/gcc/tlink.c
index a2a7db0..2d96872 100644
--- a/gcc/tlink.c
+++ b/gcc/tlink.c
@@ -456,7 +456,7 @@ recompile_files (void)
file *f;
putenv (xstrdup ("COMPILER_PATH="));
- putenv (xstrdup ("LIBRARY_PATH="));
+ putenv (xstrdup (LIBRARY_PATH_ENV "="));
while ((f = file_pop ()) != NULL)
{
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