Set -std=gnu99 CFLAG always and Use -march=native by default if supported by installed version of gcc

configure.in

@@ -52,6 +52,7 @@ AC_INIT(configure.in)
 
     CFLAGS="$CFLAGS -Wall -fno-strict-aliasing"
     CFLAGS="$CFLAGS -Wno-unused-parameter"
+    CFLAGS="$CFLAGS -std=gnu99"
 
 # Checks for programs.
     AC_PROG_AWK
@@ -181,17 +182,11 @@ AC_INIT(configure.in)
 
 #enable gcc march=native gcc 4.2 or later
     AC_ARG_ENABLE(gccmarch_native,
-           AS_HELP_STRING([--enable-gccmarch-native], [Enable gcc march=native gcc 4.2 and later only]),,[enable_gccmarch_native=no])
+           AS_HELP_STRING([--enable-gccmarch-native], [Enable gcc march=native gcc 4.2 and later only]),,[enable_gccmarch_native=yes])
     AS_IF([test "x$enable_gccmarch_native" = "xyes"], [
         if test "$gccvernum" -ge "402"; then
                 dnl gcc 4.2 or later
                 CFLAGS="$CFLAGS -march=native"
-        else
-                echo
-                echo "   You specified --enable-gccmarch-native but looks like you are running gcc < 4.2"
-                echo "   Please update your version of gcc or remove this option from configure."
-                echo
-                exit 1
         fi
     ])
 

src/util-mpm-b2g.c

@@ -63,7 +63,7 @@ void B2gThreadDestroyCtx(MpmCtx *, MpmThreadCtx *);
 int B2gAddPatternCI(MpmCtx *, uint8_t *, uint16_t, uint16_t, uint16_t, uint32_t, uint32_t, uint8_t);
 int B2gAddPatternCS(MpmCtx *, uint8_t *, uint16_t, uint16_t, uint16_t, uint32_t, uint32_t, uint8_t);
 int B2gPreparePatterns(MpmCtx *mpm_ctx);
-inline uint32_t B2gSearchWrap(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *, uint8_t *buf, uint16_t buflen);
+uint32_t B2gSearchWrap(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *, uint8_t *buf, uint16_t buflen);
 uint32_t B2gSearch1(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *, uint8_t *buf, uint16_t buflen);
 #ifdef B2G_SEARCH2
 uint32_t B2gSearch2(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *, uint8_t *buf, uint16_t buflen);
@@ -868,7 +868,7 @@ void B2gThreadDestroyCtx(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx) {
     }
 }
 
-inline uint32_t B2gSearchWrap(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *pmq, uint8_t *buf, uint16_t buflen) {
+uint32_t B2gSearchWrap(MpmCtx *mpm_ctx, MpmThreadCtx *mpm_thread_ctx, PatternMatcherQueue *pmq, uint8_t *buf, uint16_t buflen) {
     B2gCtx *ctx = (B2gCtx *)mpm_ctx->ctx;
     return ctx ? ctx->Search(mpm_ctx, mpm_thread_ctx, pmq, buf, buflen) : 0;
 }