configure.ac: Move VISIBILITY_CFLAGS into AM_CFLAGS

Author: Peter Stuge

configure.ac

@@ -205,9 +205,8 @@ AM_CONDITIONAL([HAVE_SIGACTION], [test "x$have_sigaction" = "xyes"])
 AC_CHECK_HEADERS([sys/time.h])
 AC_CHECK_FUNCS(gettimeofday)
 
-AM_CFLAGS="-std=gnu99 -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS}"
+AM_CFLAGS="-std=gnu99 -Wall -Wundef -Wunused -Wstrict-prototypes -Werror-implicit-function-declaration $nopointersign_cflags -Wshadow ${THREAD_CFLAGS} ${VISIBILITY_CFLAGS}"
 
-AC_SUBST(VISIBILITY_CFLAGS)
 AC_SUBST(AM_CFLAGS)
 AC_SUBST(LTLDFLAGS)
 

libusb/Makefile.am

@@ -37,7 +37,7 @@ else
 THREADS_SRC = os/threads_windows.h os/threads_windows.c
 endif
 
-libusb_1_0_la_CFLAGS = $(VISIBILITY_CFLAGS) $(AM_CFLAGS) \
+libusb_1_0_la_CFLAGS = $(AM_CFLAGS) \
 	-DLIBUSB_DESCRIBE=\"`git --git-dir "$(top_srcdir)/.git" describe --tags 2>/dev/null`\"
 libusb_1_0_la_LDFLAGS = $(LTLDFLAGS)
 libusb_1_0_la_SOURCES = libusbi.h core.c descriptor.c io.c sync.c $(OS_SRC) \