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build: enhance string comparisons

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Add a 'x' as a prefix in string comparisons to watch out for edge cases where
the string is empty or undefined.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>
This commit is contained in:
Víctor Manuel Jáquez Leal 2016-01-29 11:14:34 +01:00
parent 1de5e4bcb0
commit af87f9056e
1 changed files with 14 additions and 14 deletions
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28
configure.ac
View file

@ -200,7 +200,7 @@ AC_CACHE_CHECK([for VP9 parser],
dnl ... opengl helper libraries
HAVE_GSTGL=0
if test "$enable_glx" = "yes" -o "$enable_egl" = "yes"; then
if test "x$enable_glx" = "xyes" -o "x$enable_egl" = "xyes"; then
PKG_CHECK_MODULES([GST_GL],
[gstreamer-gl-$GST_PKG_VERSION >= $GST_PLUGINS_BAD_VERSION_REQUIRED],
[HAVE_GSTGL=1], [HAVE_GSTGL=0])
@ -230,7 +230,7 @@ AM_CONDITIONAL([USE_GST_GL_HELPERS], [test $HAVE_GSTGL -eq 1])
AC_DEFINE_UNQUOTED([USE_GST_GL_HELPERS], [$HAVE_GSTGL],
[Defined to 1 if GStreamer OpenGL helper libraries are available])
if test "$enable_egl" = "yes" -a $HAVE_GSTGL -ne 1; then
if test "x$enable_egl" = "xyes" -a $HAVE_GSTGL -ne 1; then
AC_MSG_WARN([GStreamer/GL helper libraries not found, disabling EGL support])
enable_egl="no"
fi
@ -272,7 +272,7 @@ dnl ---------------------------------------------------------------------------
dnl Check for DRM/libudev
USE_DRM=0
if test "$enable_drm" = "yes"; then
if test "x$enable_drm" = "xyes"; then
PKG_CHECK_MODULES(DRM, [libdrm], [USE_DRM=1], [USE_DRM=0])
PKG_CHECK_MODULES(UDEV, [libudev], [:], [USE_DRM=0])
@ -286,7 +286,7 @@ fi
dnl Check for X11
USE_X11=0
if test "$enable_x11" = "yes"; then
if test "x$enable_x11" = "xyes"; then
PKG_CHECK_MODULES(X11, [x11], [USE_X11=1], [USE_X11=0])
if test $USE_X11 -eq 1; then
saved_CPPFLAGS="$CPPFLAGS"
@ -342,16 +342,16 @@ fi
dnl OpenGL
enable_opengl="no"
if test "$enable_glx" = "yes"; then
if test "x$enable_glx" = "xyes"; then
enable_opengl="yes"
fi
if test "$enable_egl" = "yes"; then
if test "x$enable_egl" = "xyes"; then
enable_opengl="yes"
fi
GLES_VERSION_MASK=0
HAVE_GL=0
if test "$enable_opengl" = "yes"; then
if test "x$enable_opengl" = "xyes"; then
case ",$GLAPI," in
(*,any,*|*,gl,*)
HAVE_GL=1
@ -371,7 +371,7 @@ GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GL "*" 1`
dnl OpenGL|ESv2
HAVE_GLESv2=0
if test "$enable_opengl" = "yes"; then
if test "x$enable_opengl" = "xyes"; then
case ",$GLAPI," in
(*,any,*|*,gles2,*)
HAVE_GLESv2=1
@ -392,7 +392,7 @@ GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GLESv2 "*" 4`
dnl OpenGL|ESv3
HAVE_GLESv3=0
if test "$enable_opengl" = "yes"; then
if test "x$enable_opengl" = "xyes"; then
case ",$GLAPI," in
(*,any,*|*,gles3,*)
HAVE_GLESv3=1
@ -413,7 +413,7 @@ GLES_VERSION_MASK=`expr $GLES_VERSION_MASK "+" $HAVE_GLESv3 "*" 8`
dnl ... GLX
USE_GLX=0
if test "$enable_glx" = "yes" -a $HAVE_GL -eq 1 -a $USE_X11 -eq 1; then
if test "x$enable_glx" = "xyes" -a $HAVE_GL -eq 1 -a $USE_X11 -eq 1; then
USE_GLX=1
saved_CPPFLAGS="$CPPFLAGS"
saved_LIBS="$LIBS"
@ -431,7 +431,7 @@ fi
dnl ... EGL
USE_EGL=0
if test "$enable_egl" = "yes" -a $GLES_VERSION_MASK -ne 0; then
if test "x$enable_egl" = "xyes" -a $GLES_VERSION_MASK -ne 0; then
USE_EGL=1
PKG_CHECK_MODULES([EGL], [egl], [:], [USE_EGL=0])
saved_CPPFLAGS="$CPPFLAGS"
@ -448,7 +448,7 @@ fi
dnl Check for Wayland
USE_WAYLAND=0
if test "$enable_wayland" = "yes"; then
if test "x$enable_wayland" = "xyes"; then
PKG_CHECK_MODULES(WAYLAND, [wayland-client >= wayland_api_version],
[USE_WAYLAND=1], [USE_WAYLAND=0])
@ -650,7 +650,7 @@ USE_ENCODERS=0
USE_JPEG_ENCODER=0
USE_VP8_ENCODER=0
USE_H265_ENCODER=0
if test "$enable_encoders" = "yes"; then
if test "x$enable_encoders" = "xyes"; then
PKG_CHECK_MODULES([LIBVA], [libva >= va_api_enc_version],
[HAVE_VA_ENC=1], [HAVE_VA_ENC=0])
@ -752,7 +752,7 @@ if test "$enable_encoders" = "yes"; then
fi
dnl VA/Wayland API
if test "$enable_wayland" = "yes"; then
if test "x$enable_wayland" = "xyes"; then
PKG_CHECK_MODULES([LIBVA_WAYLAND], [libva-wayland >= va_api_wld_version],
[:], [USE_WAYLAND=0])
fi