From 235aedba6b68feecb3ec4c84dbf6a1d1e3e1965a Mon Sep 17 00:00:00 2001 From: Peter Trommler Date: Tue, 24 Sep 2013 13:44:54 +0200 Subject: [PATCH] Fix detection of library for shm* on openSUSE. Use the new AC_SERACH_LIBS to check if rt is needed for shm_open and shm_unlink. This sets LIBS and so the shm_* functions can be found if librt is indeed required. Passing -lrt through CFLAGS is not portable. --- configure.ac | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) Index: ghc-7.6.3/libraries/unix/configure.ac =================================================================== --- ghc-7.6.3.orig/libraries/unix/configure.ac +++ ghc-7.6.3/libraries/unix/configure.ac @@ -54,10 +54,9 @@ AC_CHECK_MEMBERS([struct stat.st_uctime] AC_CHECK_FUNCS([mkstemps mkdtemp]) # Avoid adding rt if absent or unneeded -AC_CHECK_LIB(rt, shm_open, [EXTRA_LIBS="$EXTRA_LIBS rt" CFLAGS="$CFLAGS -lrt"]) - # needs -lrt on linux -AC_CHECK_FUNCS([shm_open shm_unlink]) +AC_SEARCH_LIBS(shm_open, rt, [AC_CHECK_FUNCS([shm_open shm_unlink])]) +AS_IF([test "x$ac_cv_search_shm_open" = x-lrt], [EXTRA_LIBS="$EXTRA_LIBS rt"]) FP_CHECK_CONSTS([SIGABRT SIGALRM SIGBUS SIGCHLD SIGCONT SIGFPE SIGHUP SIGILL SIGINT SIGKILL SIGPIPE SIGQUIT SIGSEGV SIGSTOP SIGTERM SIGTSTP SIGTTIN SIGTTOU SIGUSR1 SIGUSR2 SIGPOLL SIGPROF SIGSYS SIGTRAP SIGURG SIGVTALRM SIGXCPU SIGXFSZ SIG_BLOCK SIG_SETMASK SIG_UNBLOCK], [ #if HAVE_SIGNAL_H