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-rw-r--r--m4/ax_arg_enable_warnings.m432
1 files changed, 32 insertions, 0 deletions
diff --git a/m4/ax_arg_enable_warnings.m4 b/m4/ax_arg_enable_warnings.m4
new file mode 100644
index 0000000..99b13cc
--- /dev/null
+++ b/m4/ax_arg_enable_warnings.m4
@@ -0,0 +1,32 @@
+AC_DEFUN([AX_ARG_ENABLE_WARNINGS],[
+ AC_ARG_ENABLE([warnings],[AS_HELP_STRING([--enable-warnings],[Enable compiler warnings.])],[warnings="$enableval"],[warnings="no"])
+
+ AS_IF([test "$warnings" = "yes"], [
+ AX_APPEND_COMPILE_FLAGS([-Wall])
+ AX_APPEND_COMPILE_FLAGS([-Wbad-function-cast])
+ AX_APPEND_COMPILE_FLAGS([-Wcast-align])
+ AX_APPEND_COMPILE_FLAGS([-Wcast-qual])
+ AX_APPEND_COMPILE_FLAGS([-Wclobbered])
+ AX_APPEND_COMPILE_FLAGS([-Wduplicated-cond])
+ AX_APPEND_COMPILE_FLAGS([-Wempty-body])
+ AX_APPEND_COMPILE_FLAGS([-Wignored-qualifiers])
+ AX_APPEND_COMPILE_FLAGS([-Wlogical-op])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-declarations])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-field-initializers])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-include-dirs])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-parameter-type])
+ AX_APPEND_COMPILE_FLAGS([-Wmissing-prototypes])
+ AX_APPEND_COMPILE_FLAGS([-Wnested-externs])
+ AX_APPEND_COMPILE_FLAGS([-Wold-style-declaration])
+ AX_APPEND_COMPILE_FLAGS([-Woverride-init])
+ AX_APPEND_COMPILE_FLAGS([-Wpointer-arith])
+ AX_APPEND_COMPILE_FLAGS([-Wredundant-decls])
+ AX_APPEND_COMPILE_FLAGS([-Wshadow])
+ AX_APPEND_COMPILE_FLAGS([-Wshift-negative-value])
+ AX_APPEND_COMPILE_FLAGS([-Wsign-compare])
+ AX_APPEND_COMPILE_FLAGS([-Wtype-limits])
+ AX_APPEND_COMPILE_FLAGS([-Wundef])
+ AX_APPEND_COMPILE_FLAGS([-Wuninitialized])
+ AX_APPEND_COMPILE_FLAGS([-Wwrite-strings])
+ ])
+])