CMakeLists.txt: install freetype.m4 on Unixoids

This generates a more comprehensive compile_commands.json.

CMakeLists.txt

@@ -14,30 +14,30 @@
 #
 # The following will 1. create a build directory and 2. change into it and
 # call cmake to configure the build with default parameters as a static
-# library.
+# library. See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html
+# for information about Debug, Release, etc. builds.
 #
-#   cmake -E make_directory build
-#   cmake -E chdir build cmake ..
+#   cmake -B build -D CMAKE_BUILD_TYPE=Release
 #
 # For a dynamic library, use
 #
-#   cmake -E chdir build cmake -D BUILD_SHARED_LIBS:BOOL=true ..
+#   cmake -B build -D BUILD_SHARED_LIBS=true -D CMAKE_BUILD_TYPE=Release
 #
 # For a framework on OS X, use
 #
-#   cmake -E chdir build cmake -G Xcode -D BUILD_FRAMEWORK:BOOL=true ..
+#   cmake -B build -G Xcode -D BUILD_FRAMEWORK=true
 #
 # For an iOS static library, use
 #
-#   cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=OS ..
+#   cmake -B build -G Xcode -D IOS_PLATFORM=OS
 #
 # or
 #
-#   cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR ..
+#   cmake -B build -G Xcode -D IOS_PLATFORM=SIMULATOR
 #
 # or
 #
-#   cmake -E chdir build cmake -G Xcode -D IOS_PLATFORM=SIMULATOR64 ..
+#   cmake -B build -G Xcode -D IOS_PLATFORM=SIMULATOR64
 #
 # Finally, build the project with:
 #
@@ -49,7 +49,7 @@
 #
 # A binary distribution can be made with
 #
-#   cmake --build build --config Release --target package
+#   cmake --build build --target package
 #
 # Please refer to the cmake manual for further options, in particular, how
 # to modify compilation and linking parameters.
@@ -68,14 +68,22 @@
 # . `CMakeLists.txt' is provided as-is since it is normally not used by the
 #   developer team.
 #
-# . Set the `FT_WITH_ZLIB', `FT_WITH_BZIP2', `FT_WITH_PNG', and
-#   `FT_WITH_HARFBUZZ' CMake variables to `ON' to force using a dependency.
-#   Leave a variable undefined (which is the default) to use the dependency
-#   only if it is available.  Set `CMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE' to
-#   disable a dependency completely (CMake package name, so `BZip2' instead of
-#   `BZIP2'). Example:
+# . The detection of external library dependencies is automatic, like
+#   with the default build system. Set the `FT_WITH_ZLIB', `FT_WITH_BZIP2',
+#   `FT_WITH_PNG', and `FT_WITH_HARFBUZZ' CMake variables to `ON' to force using
+#   a dependency, e.g.:
 #
-#     cmake -DFT_WITH_ZLIB=ON -DCMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE [...]
+#     cmake -B build -D FT_WITH_ZLIB=ON -D FT_WITH_BZIP2=ON \
+#                    -D FT_WITH_PNG=ON -D FT_WITH_HARFBUZZ=ON [...]
+#
+#   Use the `CMAKE_DISABLE_FIND_PACKAGE_X=TRUE' variables to
+#   disable a dependency completely (CMake package name, so `BZip2' instead of
+#   `BZIP2'), e.g.:
+#
+#     cmake -B build -D CMAKE_DISABLE_FIND_PACKAGE_ZLIB=TRUE \
+#                    -D CMAKE_DISABLE_FIND_PACKAGE_BZip2=TRUE \
+#                    -D CMAKE_DISABLE_FIND_PACKAGE_PNG=TRUE \
+#                    -D CMAKE_DISABLE_FIND_PACKAGE_HarfBuzz=TRUE [...]
 #
 # . Installation of FreeType can be controlled with the CMake variables
 #   `SKIP_INSTALL_HEADERS', `SKIP_INSTALL_LIBRARIES', and `SKIP_INSTALL_ALL'
@@ -144,13 +152,11 @@ set(VERSION_PATCH "1")
 #     Increment AGE. Set REVISION to 0
 #   If the source code was changed, but there were no interface changes:
 #     Increment REVISION.
-set(LIBRARY_VERSION "6.16.0")
+set(LIBRARY_VERSION "6.17.1")
 set(LIBRARY_SOVERSION "6")
 
-# These options mean "require x and complain if not found". They'll get
-# optionally found anyway. Use `-DCMAKE_DISABLE_FIND_PACKAGE_x=TRUE` to disable
-# searching for a packge entirely (x is the CMake package name, so "BZip2"
-# instead of "BZIP2").
+# External dependency library detection is automatic. See the top of this file,
+# notes section, for how to force or disable dependencies completely.
 option(FT_WITH_ZLIB "Use system zlib instead of internal library." OFF)
 option(FT_WITH_BZIP2 "Support bzip2 compressed fonts." OFF)
 option(FT_WITH_PNG "Support PNG compressed OpenType embedded bitmaps." OFF)
@@ -291,47 +297,150 @@ file(GLOB PRIVATE_HEADERS "include/freetype/internal/*.h")
 
 
 set(BASE_SRCS
-  src/autofit/autofit.c
-  src/base/ftbase.c
+  src/autofit/afangles.c
+  src/autofit/afblue.c
+  src/autofit/afcjk.c
+  src/autofit/afdummy.c
+  src/autofit/afglobal.c
+  src/autofit/afhints.c
+  src/autofit/afindic.c
+  src/autofit/aflatin.c
+  src/autofit/afloader.c
+  src/autofit/afmodule.c
+  src/autofit/afranges.c
+  src/autofit/afshaper.c
+  src/autofit/afwarp.c
+  src/base/ftadvanc.c
   src/base/ftbbox.c
   src/base/ftbdf.c
   src/base/ftbitmap.c
+  src/base/ftcalc.c
   src/base/ftcid.c
+  src/base/ftcolor.c
+  src/base/ftdbgmem.c
+  src/base/fterrors.c
+  src/base/ftfntfmt.c
   src/base/ftfstype.c
   src/base/ftgasp.c
+  src/base/ftgloadr.c
   src/base/ftglyph.c
   src/base/ftgxval.c
+  src/base/fthash.c
   src/base/ftinit.c
+  src/base/ftlcdfil.c
+  src/base/ftmac.c
   src/base/ftmm.c
+  src/base/ftobjs.c
   src/base/ftotval.c
+  src/base/ftoutln.c
   src/base/ftpatent.c
   src/base/ftpfr.c
+  src/base/ftpsprop.c
+  src/base/ftrfork.c
+  src/base/ftsnames.c
+  src/base/ftstream.c
   src/base/ftstroke.c
   src/base/ftsynth.c
-  src/base/ftsystem.c
+  src/base/fttrigon.c
   src/base/fttype1.c
+  src/base/ftutil.c
   src/base/ftwinfnt.c
-  src/bdf/bdf.c
+  src/bdf/bdfdrivr.c
+  src/bdf/bdflib.c
   src/bzip2/ftbzip2.c
-  src/cache/ftcache.c
-  src/cff/cff.c
-  src/cid/type1cid.c
+  src/cache/ftcbasic.c
+  src/cache/ftccache.c
+  src/cache/ftccmap.c
+  src/cache/ftcglyph.c
+  src/cache/ftcimage.c
+  src/cache/ftcmanag.c
+  src/cache/ftcmru.c
+  src/cache/ftcsbits.c
+  src/cff/cffcmap.c
+  src/cff/cffdrivr.c
+  src/cff/cffgload.c
+  src/cff/cffload.c
+  src/cff/cffobjs.c
+  src/cff/cffparse.c
+  src/cid/cidgload.c
+  src/cid/cidload.c
+  src/cid/cidobjs.c
+  src/cid/cidparse.c
+  src/cid/cidriver.c
   src/gzip/ftgzip.c
   src/lzw/ftlzw.c
-  src/pcf/pcf.c
-  src/pfr/pfr.c
-  src/psaux/psaux.c
-  src/pshinter/pshinter.c
-  src/psnames/psnames.c
-  src/raster/raster.c
-  src/sfnt/sfnt.c
-  src/smooth/smooth.c
-  src/truetype/truetype.c
-  src/type1/type1.c
-  src/type42/type42.c
+  src/pcf/pcfdrivr.c
+  src/pcf/pcfread.c
+  src/pcf/pcfutil.c
+  src/pfr/pfrcmap.c
+  src/pfr/pfrdrivr.c
+  src/pfr/pfrgload.c
+  src/pfr/pfrload.c
+  src/pfr/pfrobjs.c
+  src/pfr/pfrsbit.c
+  src/psaux/afmparse.c
+  src/psaux/cffdecode.c
+  src/psaux/psarrst.c
+  src/psaux/psauxmod.c
+  src/psaux/psblues.c
+  src/psaux/psconv.c
+  src/psaux/pserror.c
+  src/psaux/psfont.c
+  src/psaux/psft.c
+  src/psaux/pshints.c
+  src/psaux/psintrp.c
+  src/psaux/psobjs.c
+  src/psaux/psread.c
+  src/psaux/psstack.c
+  src/psaux/t1cmap.c
+  src/psaux/t1decode.c
+  src/pshinter/pshalgo.c
+  src/pshinter/pshglob.c
+  src/pshinter/pshmod.c
+  src/pshinter/pshrec.c
+  src/psnames/psmodule.c
+  src/raster/ftraster.c
+  src/raster/ftrend1.c
+  src/sfnt/pngshim.c
+  src/sfnt/sfdriver.c
+  src/sfnt/sfobjs.c
+  src/sfnt/sfwoff.c
+  src/sfnt/ttbdf.c
+  src/sfnt/ttcmap.c
+  src/sfnt/ttcolr.c
+  src/sfnt/ttcpal.c
+  src/sfnt/ttkern.c
+  src/sfnt/ttload.c
+  src/sfnt/ttmtx.c
+  src/sfnt/ttpost.c
+  src/sfnt/ttsbit.c
+  src/smooth/ftgrays.c
+  src/smooth/ftsmooth.c
+  src/truetype/ttdriver.c
+  src/truetype/ttgload.c
+  src/truetype/ttgxvar.c
+  src/truetype/ttinterp.c
+  src/truetype/ttobjs.c
+  src/truetype/ttpload.c
+  src/truetype/ttsubpix.c
+  src/type1/t1afm.c
+  src/type1/t1driver.c
+  src/type1/t1gload.c
+  src/type1/t1load.c
+  src/type1/t1objs.c
+  src/type1/t1parse.c
+  src/type42/t42drivr.c
+  src/type42/t42objs.c
+  src/type42/t42parse.c
   src/winfonts/winfnt.c
 )
 
+if (UNIX)
+  list(APPEND BASE_SRCS "builds/unix/ftsystem.c")
+else ()
+  list(APPEND BASE_SRCS "src/base/ftsystem.c")
+endif ()
+
 if (WIN32)
   enable_language(RC)
   list(APPEND BASE_SRCS builds/windows/ftdebug.c
@@ -390,8 +499,11 @@ target_include_directories(
       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
     PRIVATE
       ${CMAKE_CURRENT_BINARY_DIR}/include
-      ${CMAKE_CURRENT_SOURCE_DIR}/include)
-
+      ${CMAKE_CURRENT_SOURCE_DIR}/include
+      
+      # Make <ftconfig.h> available for builds/unix/ftsystem.c.
+      ${CMAKE_CURRENT_BINARY_DIR}/include/freetype/config
+)
 
 if (BUILD_FRAMEWORK)
   set_property(SOURCE ${PUBLIC_CONFIG_HEADERS}
@@ -488,6 +600,13 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
       COMPONENT pkgconfig)
   endif ()
 
+  if (UNIX)
+    install(
+      FILES ${PROJECT_SOURCE_DIR}/builds/unix/freetype2.m4
+      DESTINATION ${CMAKE_INSTALL_DATADIR}/aclocal
+      COMPONENT m4)
+  endif ()
+
   install(
     TARGETS freetype
       EXPORT freetype-targets