build-sys: rename cflags/ldflags variable

Not all of them are for warnings or gc.

Makefile.am

@@ -20,8 +20,8 @@ AM_CPPFLAGS = \
 	-DSYSCONFDIR=\""$(sysconfdir)"\" \
 	${zlib_CFLAGS}
 
-AM_CFLAGS = $(WARNINGFLAGS)
-AM_LDFLAGS = $(GCLDFLAGS)
+AM_CFLAGS = $(OUR_CFLAGS)
+AM_LDFLAGS = $(OUR_LDFLAGS)
 
 SED_PROCESS = \
 	$(AM_V_GEN)$(MKDIR_P) $(dir $@) && $(SED) \

configure.ac

@@ -204,13 +204,13 @@ CC_CHECK_FLAGS_APPEND(with_cflags, [CFLAGS], [\
 		       -fvisibility=hidden \
 		       -ffunction-sections \
 		       -fdata-sections])
-AC_SUBST([WARNINGFLAGS], $with_cflags)
+AC_SUBST([OUR_CFLAGS], $with_cflags)
 
 
 CC_CHECK_FLAGS_APPEND([with_ldflags], [LDFLAGS], [ \
 		       -Wl,--as-needed \
 		       -Wl,--gc-sections])
-AC_SUBST([GCLDFLAGS], $with_ldflags)
+AC_SUBST([OUR_LDFLAGS], $with_ldflags)
 
 #####################################################################
 # Generate files from *.in