diff options
Diffstat (limited to 'm4/lib-ld.m4')
| -rw-r--r-- | m4/lib-ld.m4 | 163 |
1 files changed, 57 insertions, 106 deletions
diff --git a/m4/lib-ld.m4 b/m4/lib-ld.m4 index 1244ff8..ddc569f 100644 --- a/m4/lib-ld.m4 +++ b/m4/lib-ld.m4 @@ -1,5 +1,5 @@ -# lib-ld.m4 serial 9 -dnl Copyright (C) 1996-2003, 2009-2018 Free Software Foundation, Inc. +# lib-ld.m4 serial 6 +dnl Copyright (C) 1996-2003, 2009-2014 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. @@ -47,122 +47,73 @@ if test "${PATH_SEPARATOR+set}" != set; then } fi -if test -n "$LD"; then - AC_MSG_CHECKING([for ld]) -elif test "$GCC" = yes; then +ac_prog=ld +if test "$GCC" = yes; then + # Check if gcc -print-prog-name=ld gives a path. AC_MSG_CHECKING([for ld used by $CC]) + case $host in + *-*-mingw*) + # gcc leaves a trailing carriage return which upsets mingw + ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; + *) + ac_prog=`($CC -print-prog-name=ld) 2>&5` ;; + esac + case $ac_prog in + # Accept absolute paths. + [[\\/]]* | ?:[[\\/]]*) + re_direlt='/[[^/]][[^/]]*/\.\./' + # Canonicalize the pathname of ld + ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'` + while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do + ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"` + done + test -z "$LD" && LD="$ac_prog" + ;; + "") + # If it fails, then pretend we aren't using GCC. + ac_prog=ld + ;; + *) + # If it is relative, then search for the first ld in PATH. + with_gnu_ld=unknown + ;; + esac elif test "$with_gnu_ld" = yes; then AC_MSG_CHECKING([for GNU ld]) else AC_MSG_CHECKING([for non-GNU ld]) fi -if test -n "$LD"; then - # Let the user override the test with a path. - : -else - AC_CACHE_VAL([acl_cv_path_LD], - [ - acl_cv_path_LD= # Final result of this test - ac_prog=ld # Program to search in $PATH - if test "$GCC" = yes; then - # Check if gcc -print-prog-name=ld gives a path. - case $host in - *-*-mingw*) - # gcc leaves a trailing carriage return which upsets mingw - acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;; - *) - acl_output=`($CC -print-prog-name=ld) 2>&5` ;; - esac - case $acl_output in - # Accept absolute paths. - [[\\/]]* | ?:[[\\/]]*) - re_direlt='/[[^/]][[^/]]*/\.\./' - # Canonicalize the pathname of ld - acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'` - while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do - acl_output=`echo $acl_output | sed "s%$re_direlt%/%"` - done - # Got the pathname. No search in PATH is needed. - acl_cv_path_LD="$acl_output" - ac_prog= - ;; - "") - # If it fails, then pretend we aren't using GCC. - ;; - *) - # If it is relative, then search for the first ld in PATH. - with_gnu_ld=unknown - ;; - esac - fi - if test -n "$ac_prog"; then - # Search for $ac_prog in $PATH. - acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR - for ac_dir in $PATH; do - IFS="$acl_save_ifs" - test -z "$ac_dir" && ac_dir=. - if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then - acl_cv_path_LD="$ac_dir/$ac_prog" - # Check to see if the program is GNU ld. I'd rather use --version, - # but apparently some variants of GNU ld only accept -v. - # Break only if it was the GNU/non-GNU ld that we prefer. - case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in - *GNU* | *'with BFD'*) - test "$with_gnu_ld" != no && break - ;; - *) - test "$with_gnu_ld" != yes && break - ;; - esac - fi - done - IFS="$acl_save_ifs" - fi - case $host in - *-*-aix*) - AC_COMPILE_IFELSE( - [AC_LANG_SOURCE( - [[#if defined __powerpc64__ || defined _ARCH_PPC64 - int ok; - #else - error fail - #endif - ]])], - [# The compiler produces 64-bit code. Add option '-b64' so that the - # linker groks 64-bit object files. - case "$acl_cv_path_LD " in - *" -b64 "*) ;; - *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;; - esac - ], []) +AC_CACHE_VAL([acl_cv_path_LD], +[if test -z "$LD"; then + acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR + for ac_dir in $PATH; do + IFS="$acl_save_ifs" + test -z "$ac_dir" && ac_dir=. + if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then + acl_cv_path_LD="$ac_dir/$ac_prog" + # Check to see if the program is GNU ld. I'd rather use --version, + # but apparently some variants of GNU ld only accept -v. + # Break only if it was the GNU/non-GNU ld that we prefer. + case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in + *GNU* | *'with BFD'*) + test "$with_gnu_ld" != no && break ;; - sparc64-*-netbsd*) - AC_COMPILE_IFELSE( - [AC_LANG_SOURCE( - [[#if defined __sparcv9 || defined __arch64__ - int ok; - #else - error fail - #endif - ]])], - [], - [# The compiler produces 32-bit code. Add option '-m elf32_sparc' - # so that the linker groks 32-bit object files. - case "$acl_cv_path_LD " in - *" -m elf32_sparc "*) ;; - *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;; - esac - ]) + *) + test "$with_gnu_ld" != yes && break ;; - esac - ]) - LD="$acl_cv_path_LD" -fi + esac + fi + done + IFS="$acl_save_ifs" +else + acl_cv_path_LD="$LD" # Let the user override the test with a path. +fi]) +LD="$acl_cv_path_LD" if test -n "$LD"; then AC_MSG_RESULT([$LD]) else AC_MSG_RESULT([no]) - AC_MSG_ERROR([no acceptable ld found in \$PATH]) fi +test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH]) AC_LIB_PROG_LD_GNU ]) |