fixing solaris portability

[rrdtool.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a889daa..101520f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -49,12 +49,20 @@ AH_TOP([
 /* realloc does not support NULL as argument */
 #undef NO_NULL_REALLOC
 
+/* lets enable madvise defines in NetBSD */ 
+#if defined(__NetBSD__)
+# if !defined(_NETBSD_SOURCE)
+#  define _NETBSD_SOURCE
+# endif
+#endif
+
  ])
 
 AH_BOTTOM([
 /* make sure that we pickup the correct stuff from all headers */
-#define _XOPEN_SOURCE 600
 #ifdef HAVE_FEATURES_H
+#define _XOPEN_SOURCE 600
+#define _BSD_SOURCE 1
 # include <features.h>
 #endif
 
@@ -84,6 +92,7 @@ AH_BOTTOM([
 #ifdef HAVE_SYS_MMAN_H
 # include <sys/mman.h>
 #endif
+
 #if !defined HAVE_MADVISE && defined HAVE_POSIX_MADVISE
 /* use posix_madvise family */
 # define madvise posix_madvise
@@ -218,12 +227,15 @@ char *strchr (), *strrchr ();
 /* for Solaris */
 #if (! defined(HAVE_ISINF) && defined(HAVE_FPCLASS))
 #  define HAVE_ISINF 1
+#  ifdef isinf
+#  undef isinf /* confuse autoconf */
+#  endif
 #  define isinf(a) (fpclass(a) == FP_NINF || fpclass(a) == FP_PINF)
 #endif
 
 /* solaris 10 it defines isnan such that only forte can compile it ... bad bad  */
 #if (defined(HAVE_ISNAN) && defined(isnan) && defined(HAVE_FPCLASS))
-#  undef isnan
+#  undef isnan /* confuse autoconf to NOT remove this */
 #  define isnan(a) (fpclass(a) == FP_SNAN || fpclass(a) == FP_QNAN)
 #endif
 
@@ -356,6 +368,7 @@ AC_STRUCT_TM
 dnl Checks for libraries.
 AC_CHECK_FUNC(acos, , AC_CHECK_LIB(m, acos))
 
+
 dnl add pic flag in any case this makes sure all our code is relocatable
 eval `./libtool --config | grep pic_flag`
 CFLAGS="$CFLAGS $pic_flag"
@@ -373,8 +386,6 @@ dnl of the form HAVE_FUNCTION
 
 AC_CHECK_FUNCS(tzset mbstowcs opendir readdir chdir chroot getuid setlocale strerror strerror_r snprintf vsnprintf fpclass class fp_class isnan memmove strchr mktime getrusage gettimeofday)
 
-dnl Could use these to know if we need to provide a prototype
-dnl AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
 
 dnl XXX: dunno about windows.. add AC_CHECK_FUNCS(munmap) there too?
 if test "x$enable_mmap" = "xyes"; then
@@ -567,6 +578,14 @@ AC_LINK_IFELSE(
 )
 AC_LANG_POP(C)
 
+dnl Could use these to know if we need to provide a prototype
+dnl AC_CHECK_DECLS(fdatasync, [], [], [#include <unistd.h>])
+
+dnl solaris has fdatasync in the librt
+
+AC_CHECK_FUNC(fdatasync, [],  AC_CHECK_LIB(rt, fdatasync, [LIBS="${LIBS} -lrt"],[]))
+
+
 CONFIGURE_PART(Find 3rd-Party Libraries)