wayland: Detect compiler flags

Use pkgconfig to detect include path required for building wayland
backend. Do not hardcode wayland libraries, use pkgconfig to detect
them.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>

configure

@@ -807,6 +807,8 @@ SDL2GUI
 sdl2_config
 SDL2_LIBS
 SDL2_CFLAGS
+WAYLAND_LIBS
+WAYLAND_CFLAGS
 SIXEL_LIBS
 SIXEL_CFLAGS
 VT_NORM_CFLAGS
@@ -1033,6 +1035,8 @@ GIO_CFLAGS
 GIO_LIBS
 FT_CFLAGS
 FT_LIBS
+WAYLAND_CFLAGS
+WAYLAND_LIBS
 SDL2_CFLAGS
 SDL2_LIBS
 FRIBIDI_CFLAGS
@@ -1796,6 +1800,10 @@ Some influential environment variables:
   GIO_LIBS    linker flags for GIO, overriding pkg-config
   FT_CFLAGS   C compiler flags for FT, overriding pkg-config
   FT_LIBS     linker flags for FT, overriding pkg-config
+  WAYLAND_CFLAGS
+              C compiler flags for WAYLAND, overriding pkg-config
+  WAYLAND_LIBS
+              linker flags for WAYLAND, overriding pkg-config
   SDL2_CFLAGS C compiler flags for SDL2, overriding pkg-config
   SDL2_LIBS   linker flags for SDL2, overriding pkg-config
   FRIBIDI_CFLAGS
@@ -18268,8 +18276,101 @@ elif test "$gui" = "beos" ; then
 	GUI="beos"
 	GUI_CFLAGS="-DUSE_BEOS"
 elif test "$gui" = "wayland" ; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for WAYLAND" >&5
+$as_echo_n "checking for WAYLAND... " >&6; }
+
+if test -n "$WAYLAND_CFLAGS"; then
+    pkg_cv_WAYLAND_CFLAGS="$WAYLAND_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"wayland-client wayland-cursor xkbcommon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "wayland-client wayland-cursor xkbcommon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_WAYLAND_CFLAGS=`$PKG_CONFIG --cflags "wayland-client wayland-cursor xkbcommon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$WAYLAND_LIBS"; then
+    pkg_cv_WAYLAND_LIBS="$WAYLAND_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"wayland-client wayland-cursor xkbcommon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "wayland-client wayland-cursor xkbcommon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_WAYLAND_LIBS=`$PKG_CONFIG --libs "wayland-client wayland-cursor xkbcommon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        WAYLAND_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "wayland-client wayland-cursor xkbcommon" 2>&1`
+        else
+	        WAYLAND_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "wayland-client wayland-cursor xkbcommon" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$WAYLAND_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (wayland-client wayland-cursor xkbcommon) were not met:
+
+$WAYLAND_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables WAYLAND_CFLAGS
+and WAYLAND_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables WAYLAND_CFLAGS
+and WAYLAND_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	WAYLAND_CFLAGS=$pkg_cv_WAYLAND_CFLAGS
+	WAYLAND_LIBS=$pkg_cv_WAYLAND_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
 	GUI="wayland"
 	GUI_CFLAGS="-DUSE_WAYLAND"
+
+
 elif test "$gui" = "sdl2" ; then
 
 pkg_failed=no
@@ -18342,7 +18443,7 @@ else
 $as_echo "yes" >&6; }
 	have_sdl2=yes
 fi
- 	if test "$have_sdl2" != "yes" ; then
+	if test "$have_sdl2" != "yes" ; then
 		# Extract the first word of "sdl2-config", so it can be a program name with args.
 set dummy sdl2-config; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5

configure.in

@@ -546,11 +546,14 @@ elif test "$gui" = "beos" ; then
 	GUI="beos"
 	GUI_CFLAGS="-DUSE_BEOS"
 elif test "$gui" = "wayland" ; then
+	PKG_CHECK_MODULES(WAYLAND, [wayland-client wayland-cursor xkbcommon])
 	GUI="wayland"
 	GUI_CFLAGS="-DUSE_WAYLAND"
+	AC_SUBST(WAYLAND_CFLAGS)
+	AC_SUBST(WAYLAND_LIBS)
 elif test "$gui" = "sdl2" ; then
 	PKG_CHECK_MODULES(SDL2, sdl2, have_sdl2=yes, have_sdl2=no)
- 	if test "$have_sdl2" != "yes" ; then
+	if test "$have_sdl2" != "yes" ; then
 		AC_CHECK_PROG(sdl2_config, sdl2-config, yes)
 		if test "$sdl2_config" = "yes"; then
 			SDL2_CFLAGS="`sdl2-config --cflags`"

inputmethod/canna/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/fcitx/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/ibus/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/iiimf/Makefile.in

@@ -18,6 +18,7 @@ CFLAGS = $(CFLAGS_LOCAL)		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @TYPE_CFLAGS@			\

inputmethod/kbd/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/m17nlib/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/scim/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @MEF_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/skk/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/uim/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

inputmethod/wnn/Makefile.in

@@ -16,6 +16,7 @@ CFLAGS = $(CFLAGS_LOCAL) 		\
 	 @DEB_CFLAGS@			\
 	 @X_CFLAGS@			\
 	 @GUI_CFLAGS@			\
+	 @WAYLAND_CFLAGS@		\
 	 @SDL2_CFLAGS@			\
 	 @TRUECOLOR_CFLAGS@		\
 	 @CFLAGS@			\

main/Makefile.in

@@ -38,7 +38,7 @@ LMEF_DEB = -lmef_deb
 
 # XDATADIR is to avoid conflicting with DATADIR structure in w32api/objidl.h.
 CFLAGS = $(CFLAGS_LOCAL) @POBL_CFLAGS@ @MEF_CFLAGS@ @DEB_CFLAGS@ @BRLAPI_CFLAGS@ \
-	@X_CFLAGS@ @GUI_CFLAGS@ @SSH2_CFLAGS@ @TYPE_CFLAGS@ @FT_CFLAGS@ @SDL2_CFLAGS@ \
+	@X_CFLAGS@ @GUI_CFLAGS@ @SSH2_CFLAGS@ @TYPE_CFLAGS@ @FT_CFLAGS@ @WAYLAND_CFLAGS@ @SDL2_CFLAGS@ \
 	@DAEMON_CFLAGS@ @SPLIT_CFLAGS@ @DND_CFLAGS@ @TRANSFER_CFLAGS@ @IMAGE_CFLAGS@ \
 	@TRUECOLOR_CFLAGS@ @CFLAGS@ @CPPFLAGS@ -DSYSCONFDIR=\"$(sysconfdir)\" \
 	-I$(top_srcdir)/vtemu \
@@ -63,8 +63,7 @@ LIBS2_beos = -lbe -ltranslation -lsocket
 
 LIBS2_console = @SIXEL_LIBS@ @MATH_LIBS@ @DL_LIBS_IM@ @DL_LIBS_SB@ @SOCK_LIBS@
 
-LIBS2_wayland = @FT_LIBS@ @MATH_LIBS@ @DL_LIBS_IM@ @DL_LIBS_SB@ @SOCK_LIBS@ \
-	-lwayland-client -lwayland-cursor -lxkbcommon
+LIBS2_wayland = @WAYLAND_LIBS@ @FT_LIBS@ @MATH_LIBS@ @DL_LIBS_IM@ @DL_LIBS_SB@ @SOCK_LIBS@
 
 LIBS2_sdl2_win32 = ../uitoolkit/winrs.o
 

uitoolkit/Makefile.in

@@ -60,7 +60,7 @@ CFLAGS = $(CFLAGS_LOCAL) @POBL_CFLAGS@ @MEF_CFLAGS@ @DEB_CFLAGS@ @MATH_CFLAGS@ \
 	@IMAGELIB_CFLAGS@ @X_CFLAGS@ @GUI_CFLAGS@ @SSH2_CFLAGS@ @XUTF8_CFLAGS@ @DND_CFLAGS@ \
 	@IM_CFLAGS@ @SB_CFLAGS@ @REGEX_CFLAGS@ @CTL_CFLAGS@ @TYPE_CFLAGS@ @FT_CFLAGS@ \
 	@IMAGE_CFLAGS@ @TOOLS_CFLAGS@ @OT_LAYOUT_CFLAGS@ @SIXEL_CFLAGS@ @BRLAPI_CFLAGS@ \
-	@SDL2_CFLAGS@ @SPLIT_CFLAGS@ @TRUECOLOR_CFLAGS@ @CFLAGS@ @CPPFLAGS@ \
+	@WAYLAND_CFLAGS@ @SDL2_CFLAGS@ @SPLIT_CFLAGS@ @TRUECOLOR_CFLAGS@ @CFLAGS@ @CPPFLAGS@ \
 	-DBINDIR=\"$(bindir)\" -DLIBDIR=\"$(libdir)\" -DLIBEXECDIR=\"$(libexecdir)\" \
 	-DXDATADIR=\"$(datadir)\" \
 	-I$(top_srcdir)/vtemu -I$(top_srcdir)/uitoolkit/libotl -I/usr/local/include