Add option to build with asan

api/Makefile.am

@@ -7,7 +7,8 @@ if BUILD_GLX
 EPPLET_LIB_GLX = libepplet_glx.la
 endif
 
-AM_CPPFLAGS = -I$(top_builddir) $(CWARNFLAGS) $(CFLAGS_VISIBILITY)
+AM_CPPFLAGS = -I$(top_builddir)
+AM_CFLAGS = $(CWARNFLAGS) $(CFLAGS_VISIBILITY) $(CFLAGS_ASAN)
 
 lib_LTLIBRARIES = libepplet.la $(EPPLET_LIB_GLX)
 

configure.ac

@@ -38,6 +38,7 @@ AC_C_INLINE
 EC_C___ATTRIBUTE__
 EC_C___FUNC__
 EC_C_VISIBILITY(yes)
+EC_C_ASAN()
 
 AC_PATH_XTRA
 

epplets/Makefile.am

@@ -15,7 +15,8 @@ EXTRA_PROGRAMS = EppletTest.epplet EppletConfigTest.epplet E-Mixer.epplet \
                  Emix.epplet E-PlayCD.epplet E-OpenGL-Demo.epplet \
 		 E-SD.epplet
 
-AM_CPPFLAGS = -I$(top_builddir) -I$(top_builddir)/api $(IMLIB2_CFLAGS) $(X_CFLAGS) $(LIBGTOP_CFLAGS) $(CWARNFLAGS) $(CFLAGS_VISIBILITY)
+AM_CPPFLAGS = -I$(top_builddir) -I$(top_builddir)/api $(IMLIB2_CFLAGS) $(X_CFLAGS) $(LIBGTOP_CFLAGS)
+AM_CFLAGS = $(CWARNFLAGS) $(CFLAGS_VISIBILITY) $(CFLAGS_ASAN)
 LDADD = $(top_builddir)/api/libepplet.la $(X_LIBS) $(KSTAT_LIBS)
 
 ################ Conditional Builds ################

m4/ec_asan.m4

@@ -0,0 +1,20 @@
+dnl Copyright (C) 2020 Kim Woelders
+dnl This code is public domain and can be freely used or copied.
+
+dnl Macro to set compiler flags in CFLAGS_ASAN
+
+dnl Usage: EC_C_ASAN()
+
+AC_DEFUN([EC_C_ASAN], [
+  AC_ARG_ENABLE(gcc-asan,
+    [AS_HELP_STRING([--enable-gcc-asan],
+                    [compile with ASAN support @<:@default=no@:>@])],,
+    enable_gcc_asan=no)
+
+  if test "x$GCC" = "xyes"; then
+    if test "x$enable_gcc_asan" = "xyes"; then
+      CFLAGS_ASAN="-fsanitize=address -fno-omit-frame-pointer"
+    fi
+  fi
+  AC_SUBST(CFLAGS_ASAN)
+])