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author | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2013-01-14 13:44:26 +0000 |
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committer | Sam Thursfield <sam.thursfield@codethink.co.uk> | 2013-01-14 13:44:26 +0000 |
commit | da85052823342b1be9e21b878df91a572040d371 (patch) | |
tree | f67cd86a6e6d8ea28e716aaf8eaa60519cce2750 /m4/symlink.m4 | |
parent | 7730f8304e68bef887dbf98dd4eecdb61e7d3ebb (diff) | |
download | patch-da85052823342b1be9e21b878df91a572040d371.tar.gz |
Fix up tarball import.baserock/build-essential
ALWAYS REMOVE ALL INSTANCES OF .gitignore.
Diffstat (limited to 'm4/symlink.m4')
-rw-r--r-- | m4/symlink.m4 | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/m4/symlink.m4 b/m4/symlink.m4 new file mode 100644 index 0000000..cfd90ec --- /dev/null +++ b/m4/symlink.m4 @@ -0,0 +1,53 @@ +# serial 6 +# See if we need to provide symlink replacement. + +dnl Copyright (C) 2009-2012 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Written by Eric Blake. + +AC_DEFUN([gl_FUNC_SYMLINK], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles + AC_CHECK_FUNCS_ONCE([symlink]) + dnl The best we can do on mingw is provide a dummy that always fails, so + dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1, + dnl and Solaris 9, we want to fix a bug with trailing slash handling. + if test $ac_cv_func_symlink = no; then + HAVE_SYMLINK=0 + else + AC_CACHE_CHECK([whether symlink handles trailing slash correctly], + [gl_cv_func_symlink_works], + [AC_RUN_IFELSE( + [AC_LANG_PROGRAM( + [[#include <unistd.h> + ]], + [[int result = 0; + if (!symlink ("a", "conftest.link/")) + result |= 1; + if (symlink ("conftest.f", "conftest.lnk2")) + result |= 2; + else if (!symlink ("a", "conftest.lnk2/")) + result |= 4; + return result; + ]])], + [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no], + [case "$host_os" in + # Guess yes on glibc systems. + *-gnu*) gl_cv_func_symlink_works="guessing yes" ;; + # If we don't know, assume the worst. + *) gl_cv_func_symlink_works="guessing no" ;; + esac + ]) + rm -f conftest.f conftest.link conftest.lnk2]) + case "$gl_cv_func_symlink_works" in + *yes) ;; + *) + REPLACE_SYMLINK=1 + ;; + esac + fi +]) |