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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2019-09-01 15:22:18 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2019-09-01 15:47:04 +0000 |
| commit | 36e16cbc810460e182c2e1ab16e40f0d2aad19ed (patch) | |
| tree | ea8335b68b0b37eaa685e733cb5fef4b04939b9e /configure.ac | |
| parent | 3add78ffac30ca3785eea5cd35619710b50432b0 (diff) | |
| download | libxcrypt-36e16cbc810460e182c2e1ab16e40f0d2aad19ed.tar.gz libxcrypt-36e16cbc810460e182c2e1ab16e40f0d2aad19ed.tar.bz2 libxcrypt-36e16cbc810460e182c2e1ab16e40f0d2aad19ed.zip | |
Add binary compatibility for GNU/Hurd and GNU/kFreeBSD
Fixes #91
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 66 |
1 files changed, 40 insertions, 26 deletions
diff --git a/configure.ac b/configure.ac index 9fc01ac..18ad5b9 100644 --- a/configure.ac +++ b/configure.ac @@ -431,38 +431,51 @@ if test x$enable_shared != xyes; then enable_obsolete_api=0; fi # Determine whether there's even a GNU libc on this system that we # need to be binary backward compatible with. +MINVER_OS=no SYMVER_FLOOR=none if test $enable_obsolete_api = 1; then AC_MSG_CHECKING([minimum symbol version to use for compatibility symbols]) case $host_os in - *linux*) - while read pattern version cond; do - if test -z "$pattern" || test "x$pattern" = 'x#'; then - continue - fi - if expr "$host_cpu" : "$pattern" > /dev/null; then - if test -z "$cond"; then - cond_matched=yes - else - AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ -#include <limits.h> -#if $cond -#error yes -#endif - ]])], - [cond_matched=no], [cond_matched=yes]) + *gnu*) + # GNU Systems use glibc + case $host_os in + *linux*) + MINVER_OS=linux + ;; + kfreebsd-gnu*) + MINVER_OS=kfreebsd + ;; + gnu*) + MINVER_OS=hurd + ;; + *) + ;; + esac + + if test $MINVER_OS != no ; then + while read pattern version cond; do + if test -z "$pattern" || test "x$pattern" = 'x#'; then + continue fi - if test $cond_matched = yes; then - SYMVER_FLOOR="$version" - break + if expr "$host_cpu" : "$pattern" > /dev/null; then + if test -z "$cond"; then + cond_matched=yes + else + AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ + #include <limits.h> + #if $cond + #error yes + #endif + ]])], + [cond_matched=no], [cond_matched=yes]) + fi + if test $cond_matched = yes; then + SYMVER_FLOOR="$version" + break + fi fi - fi - done < ${srcdir}/lib/libcrypt.minver - ;; - - *gnu*) - # glibc exists for GNU Hurd, but it is unclear to me whether - # it has a stable ABI yet. For now, we are assuming not. + done < ${srcdir}/lib/libcrypt.minver.$MINVER_OS + fi ;; *) @@ -479,6 +492,7 @@ if test x"$SYMVER_FLOOR" = xnone; then else SYMVER_MIN=GLIBC_2.0 fi +AC_SUBST([MINVER_OS]) AC_SUBST([SYMVER_FLOOR]) AC_SUBST([SYMVER_MIN]) |