[cmake] Check the availability of `bzip2.pc'.
(CMakeLists.txt): Check the availability of `bzip2.pc'.
* If `bzip2.pc' is available, Requires.private should include
bzip2, but Libs.private should not include -lbz2.
* If `bzip2.pc' is unavailable, Requires.private cannot include
bzip2, but Libs.private should include -lbz2.
Fix #897.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6f9a650..4590309 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -271,11 +271,16 @@
endif ()
if (NOT FT_DISABLE_BZIP2)
+ # Genuine BZip2 does not provide bzip2.pc, but some platforms have it.
+ # For better dependency in freetype2.pc, bzip2.pc is searched
+ # regardless of the availability of libbz2. If bzip2.pc is found,
+ # Requires.private is used instead of Libs.private.
if (FT_REQUIRE_BZIP2)
find_package(BZip2 REQUIRED)
else ()
find_package(BZip2)
endif ()
+ pkg_check_modules(PC_BZIP2 bzip2)
endif ()
if (NOT FT_DISABLE_BROTLI)
@@ -504,7 +509,11 @@
if (BZIP2_FOUND)
target_link_libraries(freetype PRIVATE ${BZIP2_LIBRARIES})
target_include_directories(freetype PRIVATE ${BZIP2_INCLUDE_DIR}) # not BZIP2_INCLUDE_DIRS
- list(APPEND PKG_CONFIG_LIBS_PRIVATE "-lbz2")
+ if (PC_BZIP2_FOUND)
+ list(APPEND PKG_CONFIG_REQUIRED_PRIVATE "bzip2")
+ else ()
+ list(APPEND PKG_CONFIG_LIBS_PRIVATE "-lbz2")
+ endif ()
endif ()
if (PNG_FOUND)
target_link_libraries(freetype PRIVATE ${PNG_LIBRARIES})
