X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=configure.ac;h=2739394cfeb20c558a16d4eb23362bd1bea2973f;hb=12ec1e241c7c28da9fe6bc69788c0c81f556c746;hp=f2773672896f209c4af41e8cc45e66eb8d0861c8;hpb=13346da217137e4efb6cf14657960c75a23251ad;p=ghc-hetmet.git

diff --git a/configure.ac b/configure.ac
index f277367..2739394 100644
--- a/configure.ac
+++ b/configure.ac
@@ -319,12 +319,6 @@ x86_64-apple-darwin)
     ;;
 esac
 
-FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS])
-FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_LD_OPTS_STAGE0])
-FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_LD_OPTS_STAGE1])
-# Stage 3 won't be supported by cross-compilation
-FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_LD_OPTS_STAGE2])
-
 checkArch() {
     case $1 in
     alpha|arm|hppa|hppa1_1|i386|ia64|m68k|mips|mipseb|mipsel|powerpc|powerpc64|rs6000|s390|sparc|sparc64|vax|x86_64)
@@ -562,6 +556,13 @@ dnl     Figure out which C compiler to use.  Gcc is preferred.
 dnl     If gcc, make sure it's at least 2.1
 dnl
 FP_HAVE_GCC
+
+FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS])
+FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_LD_OPTS_STAGE0])
+FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_LD_OPTS_STAGE1])
+# Stage 3 won't be supported by cross-compilation
+FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_LD_OPTS_STAGE2])
+
 FP_GCC_EXTRA_FLAGS
 
 dnl ** figure out how to invoke cpp directly (gcc -E is no good)
@@ -780,8 +781,11 @@ dnl    Keep that check as early as possible.
 dnl    as we need to know whether we need libm
 dnl    for math functions or not
 dnl    (see http://hackage.haskell.org/trac/ghc/ticket/3730)
-AC_SEARCH_LIBS(atan, m, 
-  [AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])])
+AC_CHECK_LIB(m, atan, HaveLibM=YES, HaveLibM=NO)
+if test $HaveLibM = YES
+then
+  AC_DEFINE([HAVE_LIBM], [1], [Define to 1 if you need to link with libm])
+fi
 
 dnl ** check whether this machine has BFD and liberty installed (used for debugging)
 dnl    the order of these tests matters: bfd needs liberty
@@ -875,6 +879,10 @@ AC_TRY_LINK_FUNC(printf\$LDBLStub,
             [Define to 1 if we have printf$LDBLStub (Apple Mac OS >= 10.4, PPC).])
     ])
 
+dnl ** check for eventfd which is needed by the I/O manager
+AC_CHECK_HEADERS([sys/eventfd.h])
+AC_CHECK_FUNCS([eventfd])
+
 # test for GTK+
 AC_PATH_PROGS([GTK_CONFIG], [pkg-config])
 if test -n "$GTK_CONFIG"; then