configure: Check for madvise

[location/libloc.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 414d75a6e6d193ea434fc6d9e7bcb6f6c469c96f..521194fce242801029776647f593a7f38ef00547 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1,6 +1,6 @@
 AC_PREREQ(2.60)
 AC_INIT([libloc],
-        [0.9.2],
+        [0.9.14],
         [location@lists.ipfire.org],
         [libloc],
         [https://location.ipfire.org/])
@@ -18,7 +18,7 @@ AM_INIT_AUTOMAKE([
        dist-xz
        subdir-objects
 ])
-AC_PROG_CC_STDC
+AC_PROG_CC
 AC_USE_SYSTEM_EXTENSIONS
 AC_SYS_LARGEFILE
 AC_CONFIG_MACRO_DIR([m4])
@@ -43,16 +43,16 @@ AC_PROG_MKDIR_P
 
 # - man ------------------------------------------------------------------------
 
-have_manpages=no
-AC_ARG_ENABLE(manpages, AS_HELP_STRING([--disable-man-pages],
+have_man_pages=no
+AC_ARG_ENABLE(man_pages, AS_HELP_STRING([--disable-man-pages],
        [do not install man pages]))
-AS_IF([test "x$enable_manpages" != xno], [have_manpages=yes])
-AM_CONDITIONAL(ENABLE_MANPAGES, [test "x$have_manpages" = "xyes"])
+AS_IF([test "x$enable_man_pages" != xno], [have_man_pages=yes])
+AM_CONDITIONAL(ENABLE_MAN_PAGES, [test "x$have_man_pages" = "xyes"])
 
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 
 AC_CHECK_PROGS(ASCIIDOC, [asciidoc])
-if test "${have_manpages}" = "yes" && test -z "${ASCIIDOC}"; then
+if test "${have_man_pages}" = "yes" && test -z "${ASCIIDOC}"; then
        AC_MSG_ERROR([Required program 'asciidoc' not found])
 fi
 # - debug ----------------------------------------------------------------------
@@ -81,6 +81,7 @@ AC_CHECK_FUNCS([ \
     htobe16 \
     htobe32 \
     htobe64 \
+    madvise \
     mmap \
     munmap \
     res_query \
@@ -103,6 +104,19 @@ my_CFLAGS="\
 -Wtype-limits \
 "
 AC_SUBST([my_CFLAGS])
+AC_SUBST([my_LDFLAGS])
+
+# Enable -fanalyzer if requested
+AC_ARG_ENABLE([analyzer],
+       AS_HELP_STRING([--enable-analyzer], [enable static analyzer (-fanalyzer) @<:@default=disabled@:>@]),
+       [], [enable_analyzer=no])
+AS_IF([test "x$enable_analyzer" = "xyes"],
+       CC_CHECK_FLAGS_APPEND([my_CFLAGS], [CFLAGS], [-fanalyzer])
+)
+
+# Enable -fno-semantic-interposition (if available)
+CC_CHECK_FLAGS_APPEND([my_CFLAGS], [CFLAGS], [-fno-semantic-interposition])
+CC_CHECK_FLAGS_APPEND([my_LDFLAGS], [LDFLAGS], [-fno-semantic-interposition])
 
 # ------------------------------------------------------------------------------