Fix: Don't override user variables within the build system

[lttng-ust.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 99868a62eee849300af4d7b3421db04c271e58b5..4fb8bce5639870c6e8e151c756f62846c890b6e9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -188,8 +188,6 @@ dnl AC_CHECK_TYPES([ptrdiff_t])
 AC_FUNC_MALLOC
 AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
 
-CFLAGS="-Wall $CFLAGS"
-
 # URCU
 
 # urcu - check if we just find the headers it out of the box.
@@ -307,10 +305,13 @@ AS_IF([test "x$jni_interface" = "xyes" || test "x$java_agent_jul" = "xyes" || te
        AX_JNI_INCLUDE_DIR
        for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS
        do
-               CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR"
+               JNI_CPPFLAGS="$JNI_CPPFLAGS -I$JNI_INCLUDE_DIR"
        done
 
+       saved_CPPFLAGS="$CPPFLAGS"
+       CPPFLAGS="$CPPFLAGS $JNI_CPPFLAGS"
        AX_PROG_JAVAH
+       CPPFLAGS="$saved_CPPFLAGS"
 ])
 
 AS_IF([test "x$java_agent_log4j" = "xyes"], [
@@ -447,6 +448,10 @@ _AC_DEFINE_AND_SUBST([LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS], [3000])
 # By default, do not retry on buffer full condition.
 _AC_DEFINE_AND_SUBST([LTTNG_UST_DEFAULT_BLOCKING_RETRY_TIMEOUT_MS], [0])
 
+AM_CFLAGS="-Wall"
+AC_SUBST(AM_CFLAGS)
+AC_SUBST(JNI_CPPFLAGS)
+
 AC_CONFIG_FILES([
        Makefile
        doc/Makefile