solaris 10 has isnan defined as a sun forte builtin ... gcc can not deal with this

[rrdtool.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 0a1aae1..e50796e 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -8,13 +8,13 @@ dnl Inspiration from http://autoconf-archive.cryp.to
 dnl tell automake the this script is for rrdtool
 dnl the official version number is
 dnl a.b.c
 dnl tell automake the this script is for rrdtool
 dnl the official version number is
 dnl a.b.c

-AC_INIT([rrdtool],[1.2.13])
+AC_INIT([rrdtool],[1.2.15])

 dnl for testing a numberical version number comes handy
 dnl the released version are
 dnl a.bccc
 dnl the devl versions will be something like
 dnl a.b999yymmddhh 
 dnl for testing a numberical version number comes handy
 dnl the released version are
 dnl a.bccc
 dnl the devl versions will be something like
 dnl a.b999yymmddhh 

-NUMVERS=1.2013
+NUMVERS=1.2015

 AC_SUBST(NUMVERS)
 AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE
 AC_SUBST(NUMVERS)
 AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE


@@ -103,6 +103,12 @@ char *strchr (), *strrchr ();
 #  define isinf(a) (fpclass(a) == FP_NINF || fpclass(a) == FP_PINF)
 #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
+#  define isnan(a) (fpclass(a) == FP_SNAN || fpclass(a) == FP_QNAN)
+#endif
+

 /* for OSF1 Digital Unix */
 #if (! defined(HAVE_ISINF) && defined(HAVE_FP_CLASS) && defined(HAVE_FP_CLASS_H))
 #  define HAVE_ISINF 1
 /* for OSF1 Digital Unix */
 #if (! defined(HAVE_ISINF) && defined(HAVE_FP_CLASS) && defined(HAVE_FP_CLASS_H))
 #  define HAVE_ISINF 1


@@ -189,6 +195,21 @@ AC_PROG_CC
 AC_PROG_CPP
 AC_PROG_LIBTOOL
 
 AC_PROG_CPP
 AC_PROG_LIBTOOL
 

+dnl which flags does the compile support?
+if test "$GCC" = "yes"; then
+  for flag in -fno-strict-aliasing -Wall -std=gnu99 -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -W; do
+    oCFLAGS=$CFLAGS
+    CFLAGS="$CFLAGS $flag"
+    cachename=rd_cv_gcc_flag_`echo $flag|sed 's/[[^A-Za-z]]/_/g'`
+    AC_CACHE_CHECK([if gcc likes the $flag flag], $cachename,
+       [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0 ]])],[eval $cachename=yes],[eval $cachename=no])])
+    if eval test \$$cachename = no; then
+         CFLAGS=$oCFLAGS
+    fi
+  done
+fi
+
+

 
 AC_SUBST(RRD_DEFAULT_FONT)
 
 
 AC_SUBST(RRD_DEFAULT_FONT)
 


@@ -527,19 +548,6 @@ AC_ARG_VAR(RRDDOCDIR, [[DATADIR/doc/PACKAGE-VERSION] Documentation directory])
 if test -z "$RRDDOCDIR"; then
    RRDDOCDIR='${datadir}/doc/${PACKAGE}-${VERSION}'; fi
 
 if test -z "$RRDDOCDIR"; then
    RRDDOCDIR='${datadir}/doc/${PACKAGE}-${VERSION}'; fi
 

-dnl Does the compiler like -Wall and -pedantic?
-if test "$GCC" = "yes"; then
-  oCFLAGS=$CFLAGS
-  CFLAGS="$CFLAGS -fno-strict-aliasing -Wall -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -W"
-  AC_CACHE_CHECK(if we can use GCC-specific compiler options, rd_cv_gcc_opt,
-                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[return 0 ]])],[rd_cv_gcc_opt=yes],[rd_cv_gcc_opt=no ])
-               ]
-        )
-  if test $rd_cv_gcc_opt = no; then
-         CFLAGS=$oCFLAGS
-  fi
-fi
-

 
 CONFIGURE_PART(Apply Configuration Information)
  
 
 CONFIGURE_PART(Apply Configuration Information)