* make rrd_getopt compile on solaris

[rrdtool.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 29be00c..d0fec6a 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -161,7 +161,7 @@ AC_SUBST(WERROR)
 
 dnl which flags does the compiler support?
 if test "x$GCC" = "xyes"; then
-  for flag in -fno-strict-aliasing -Wall -std=c99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wold-style-definition -W; do
+  for flag in -fno-strict-aliasing -Wall -std=gnu99 -pedantic -Wundef -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -Wold-style-definition -W; do
     oCFLAGS="$CFLAGS"
     CFLAGS="$CFLAGS $flag"
     cachename=rd_cv_gcc_flag_`echo $flag|sed 's/[[^A-Za-z]]/_/g'`
@@ -192,7 +192,8 @@ AC_STRUCT_TM
 CONFIGURE_PART(Test Library Functions)
 
 dnl Checks for libraries.
-AC_CHECK_FUNC(acos, , AC_CHECK_LIB(m, acos))
+AC_CHECK_FUNC(acos,  , AC_CHECK_LIB(m, acos))
+AC_CHECK_FUNC(round, , AC_CHECK_LIB(m, round))
 
 
 dnl add pic flag in any case this makes sure all our code is relocatable