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-rw-r--r--configure.in17
1 files changed, 16 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 21f2295e..158d451f 100644
--- a/configure.in
+++ b/configure.in
@@ -178,9 +178,18 @@ esac
)
AC_ARG_ENABLE(gccwarnings,
- AS_HELP_STRING([--enable-gccwarnings], [Enable compiler warnings, default yes]),
+ AS_HELP_STRING([--disable-gccwarnings], [Disable compiler warnings]),
[gcc_warnings=$enableval], [gcc_warnings=yes])
+AC_ARG_ENABLE(wextra,
+ AS_HELP_STRING([--disable-wextra], [Disable extra compiler warnings]),
+ [gcc_wextra=$enableval], [gcc_wextra=$gcc_warnings])
+
+AC_ARG_ENABLE(werror,
+ AS_HELP_STRING([--disable-werror], [Do not treat warnings as errors]),
+ [gcc_werror=$enableval], [gcc_werror=$gcc_warnings])
+
+
AC_ARG_ENABLE(parport,
AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]),
[build_parport=$enableval], [build_parport=no])
@@ -684,6 +693,12 @@ AC_PROG_RANLIB
# set default gcc warnings
GCC_WARNINGS="-Wall -Wstrict-prototypes"
+if test "${gcc_wextra}" = yes; then
+ GCC_WARNINGS="${GCC_WARNINGS} -Wextra -Wno-unused-parameter"
+fi
+if test "${gcc_werror}" = yes; then
+ GCC_WARNINGS="${GCC_WARNINGS} -Werror"
+fi
# overide default gcc cflags
if test $gcc_warnings = yes; then