Add lcms2 interface

configure.ac: Add boilerplate for configuring and detecting liblcms2.
etc/NEWS: Mention new configure option and color-distance change.
src/Makefile.in: Add references to lcms.c and liblcms.
src/emacs.c: Define lcms2 symbols.
src/lcms.c: New file.
src/lisp.h: Add declaration for lcms2.
src/xfaces.c: Add optional METRIC argument.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/Makefile.in b/src/Makefile.in
index dde3f1d3fb4..a98ad9c5ebd 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -234,6 +234,8 @@ LIBXML2_CFLAGS = @LIBXML2_CFLAGS@
 
 GETADDRINFO_A_LIBS = @GETADDRINFO_A_LIBS@
 
+LIBLCMS2 = @LIBLCMS2@
+
 LIBZ = @LIBZ@
 
 ## system-specific libs for dynamic modules, else empty
@@ -389,7 +391,7 @@ base_obj = dispnew.o frame.o scroll.o xdisp.o menu.o $(XMENU_OBJ) window.o \
         syntax.o $(UNEXEC_OBJ) bytecode.o \
         process.o gnutls.o callproc.o \
         region-cache.o sound.o atimer.o \
-        doprnt.o intervals.o textprop.o composite.o xml.o $(NOTIFY_OBJ) \
+        doprnt.o intervals.o textprop.o composite.o xml.o lcms.o $(NOTIFY_OBJ) \
         $(XWIDGETS_OBJ) \
         profiler.o decompress.o \
         thread.o systhread.o \
@@ -490,7 +492,7 @@ LIBES = $(LIBS) $(W32_LIBS) $(LIBS_GNUSTEP) $(LIBX_BASE) $(LIBIMAGE) \
    $(LIBXML2_LIBS) $(LIBGPM) $(LIBS_SYSTEM) $(CAIRO_LIBS) \
    $(LIBS_TERMCAP) $(GETLOADAVG_LIBS) $(SETTINGS_LIBS) $(LIBSELINUX_LIBS) \
    $(FREETYPE_LIBS) $(FONTCONFIG_LIBS) $(LIBOTF_LIBS) $(M17N_FLT_LIBS) \
-   $(LIBGNUTLS_LIBS) $(LIB_PTHREAD) $(GETADDRINFO_A_LIBS) \
+   $(LIBGNUTLS_LIBS) $(LIB_PTHREAD) $(GETADDRINFO_A_LIBS) $(LIBLCMS2) \
    $(NOTIFY_LIBS) $(LIB_MATH) $(LIBZ) $(LIBMODULES) $(LIBSYSTEMD_LIBS)
 
 ## FORCE it so that admin/unidata can decide whether these files