set(libqpdf_crypto_native AES_PDF_native.cc MD5_native.cc QPDFCrypto_native.cc RC4_native.cc SHA2_native.cc rijndael.cc sha2.c sha2big.c) set(libqpdf_crypto_openssl QPDFCrypto_openssl.cc) set(libqpdf_crypto_gnutls QPDFCrypto_gnutls.cc) set(libqpdf_SOURCES BitStream.cc BitWriter.cc Buffer.cc BufferInputSource.cc ClosedFileInputSource.cc ContentNormalizer.cc CryptoRandomDataProvider.cc FileInputSource.cc InputSource.cc InsecureRandomDataProvider.cc JSON.cc JSONHandler.cc MD5.cc NNTree.cc OffsetInputSource.cc PDFVersion.cc Pipeline.cc Pl_AES_PDF.cc Pl_ASCII85Decoder.cc Pl_ASCIIHexDecoder.cc Pl_Base64.cc Pl_Buffer.cc Pl_Concatenate.cc Pl_Count.cc Pl_DCT.cc Pl_Discard.cc Pl_Flate.cc Pl_LZWDecoder.cc Pl_MD5.cc Pl_OStream.cc Pl_PNGFilter.cc Pl_QPDFTokenizer.cc Pl_RC4.cc Pl_RunLength.cc Pl_SHA2.cc Pl_StdioFile.cc Pl_String.cc Pl_TIFFPredictor.cc QPDF.cc QPDFAcroFormDocumentHelper.cc QPDFAnnotationObjectHelper.cc QPDFArgParser.cc QPDFCryptoProvider.cc QPDFEFStreamObjectHelper.cc QPDFEmbeddedFileDocumentHelper.cc QPDFExc.cc QPDFFileSpecObjectHelper.cc QPDFFormFieldObjectHelper.cc QPDFJob.cc QPDFJob_argv.cc QPDFJob_config.cc QPDFJob_json.cc QPDFMatrix.cc QPDFNameTreeObjectHelper.cc QPDFNumberTreeObjectHelper.cc QPDFObjGen.cc QPDFObject.cc QPDFObjectHandle.cc QPDFOutlineDocumentHelper.cc QPDFOutlineObjectHelper.cc QPDFPageDocumentHelper.cc QPDFPageLabelDocumentHelper.cc QPDFPageObjectHelper.cc QPDFStreamFilter.cc QPDFSystemError.cc QPDFTokenizer.cc QPDFUsage.cc QPDFWriter.cc QPDFXRefEntry.cc QPDF_Array.cc QPDF_Bool.cc QPDF_Dictionary.cc QPDF_InlineImage.cc QPDF_Integer.cc QPDF_Name.cc QPDF_Null.cc QPDF_Operator.cc QPDF_Real.cc QPDF_Reserved.cc QPDF_Stream.cc QPDF_String.cc QPDF_encryption.cc QPDF_linearization.cc QPDF_optimization.cc QPDF_pages.cc QTC.cc QUtil.cc RC4.cc ResourceFinder.cc SecureRandomDataProvider.cc SF_FlateLzwDecode.cc SparseOHArray.cc qpdf-c.cc qpdfjob-c.cc) include(FindPkgConfig) include(CheckTypeSize) include(CheckIncludeFile) include(CheckCSourceCompiles) include(CheckCSourceRuns) include(CheckSymbolExists) set(dep_include_directories) set(dep_link_directories) set(dep_link_libraries) set(ANYTHING_MISSING 0) if(WIN32 AND (EXISTS ${qpdf_SOURCE_DIR}/external-libs)) set(EXTERNAL_LIBS 1) else() set(EXTERNAL_LIBS 0) endif() if(EXTERNAL_LIBS) set(EXTLIBDIR ${qpdf_SOURCE_DIR}/external-libs) list(APPEND dep_include_directories ${EXTLIBDIR}/include) set(JPEG_INCLUDE ${EXTLIBDIR}/include) list(APPEND dep_link_libraries z jpeg ssl crypto msvcrt ws2_32 shell32 advapi32 gdi32 user32 crypt32) if (MSVC) list(APPEND dep_link_directories ${EXTLIBDIR}/lib-msvc${WORDSIZE}) else() list(APPEND dep_link_directories ${EXTLIBDIR}/lib-mingw${WORDSIZE}) endif() endif() if(NOT EXTERNAL_LIBS) pkg_check_modules(pc_zlib zlib) if(pc_zlib_FOUND) list(APPEND dep_include_directories ${pc_zlib_INCLUDEDIR}) list(APPEND dep_link_directories ${pc_zlib_LIBDIR}) list(APPEND dep_link_libraries ${pc_zlib_LIBRARIES}) else() find_path(ZLIB_H_PATH zlib.h) find_library(ZLIB_LIB_PATH z zlib) if(ZLIB_H_PATH AND ZLIB_LIB_PATH) list(APPEND dep_include_directories ${ZLIB_H_PATH}) list(APPEND dep_link_libraries ${ZLIB_LIB_PATH}) else() message(SEND_ERROR "zlib not found") set(ANYTHING_MISSING 1) endif() endif() endif() if(NOT EXTERNAL_LIBS) pkg_check_modules(pc_libjpeg libjpeg) if(pc_libjpeg_FOUND) list(APPEND dep_include_directories ${pc_libjpeg_INCLUDEDIR}) list(APPEND dep_link_directories ${pc_libjpeg_LIBDIR}) list(APPEND dep_link_libraries ${pc_libjpeg_LIBRARIES}) set(JPEG_INCLUDE ${pc_libjpeg_INCLUDEDIR}) else() find_path(LIBJPEG_H_PATH jpeglib.h) find_library(LIBJPEG_LIB_PATH jpeg) if(LIBJPEG_H_PATH AND LIBJPEG_LIB_PATH) list(APPEND dep_include_directories ${LIBJPEG_H_PATH}) list(APPEND dep_link_libraries ${LIBJPEG_LIB_PATH}) set(JPEG_INCLUDE ${LIBJPEG_H_PATH}) else() message(SEND_ERROR "libjpeg not found") set(ANYTHING_MISSING 1) endif() endif() endif() # Update JPEG_INCLUDE in PARENT_SCOPE after we have finished setting it. set(JPEG_INCLUDE ${JPEG_INCLUDE} PARENT_SCOPE) # Crypto provider selection. Prefer external crypto providers. If # implicit selection is allowed, use native only when no other options # are available or when explicitly requested. Allowing native as a # fallback can be disabled using the ALLOW_CRYPTO_NATIVE option. list(APPEND CRYPTO_PKG) set(USE_CRYPTO_GNUTLS OFF) set(USE_CRYPTO_OPENSSL OFF) set(USE_CRYPTO_NATIVE OFF) set(FOUND_CRYPTO OFF) if(USE_IMPLICIT_CRYPTO OR REQUIRE_CRYPTO_OPENSSL) if(EXTERNAL_LIBS) set(USE_CRYPTO_OPENSSL ON) else() pkg_check_modules(pc_openssl openssl>=1.1.0) if(pc_openssl_FOUND) set(USE_CRYPTO_OPENSSL ON) set(FOUND_CRYPTO ON) set(CRYPTO_PKG "${CRYPTO_PKG}, openssl >= 1.1.0") else() find_path(OPENSSL_H_PATH openssl/evp.h) find_library(OPENSSL_LIB_PATH crypto) if(OPENSSL_H_PATH AND OPENSSL_LIB_PATH) list(APPEND dep_include_directories ${OPENSSL_H_PATH}) list(APPEND dep_link_libraries ${OPENSSL_LIB_PATH}) set(USE_CRYPTO_OPENSSL ON) set(FOUND_CRYPTO ON) elseif(REQUIRE_CRYPTO_OPENSSL) message(SEND_ERROR "openssl not found") set(ANYTHING_MISSING 1) endif() endif() endif() endif() if(USE_IMPLICIT_CRYPTO OR REQUIRE_CRYPTO_GNUTLS) pkg_check_modules(pc_gnutls gnutls) if(pc_gnutls_FOUND) set(USE_CRYPTO_GNUTLS ON) set(FOUND_CRYPTO ON) set(CRYPTO_PKG "${CRYPTO_PKG}, gnutls") else() find_path(GNUTLS_H_PATH gnutls/gnutls.h) find_library(GNUTLS_LIB_PATH gnutls) if(GNUTLS_H_PATH AND GNUTLS_LIB_PATH) list(APPEND dep_include_directories ${GNUTLS_H_PATH}) list(APPEND dep_link_libraries ${GNUTLS_LIB_PATH}) set(USE_CRYPTO_GNUTLS ON) set(FOUND_CRYPTO ON) elseif(REQUIRE_CRYPTO_GNUTLS) message(SEND_ERROR "gnutls not found") set(ANYTHING_MISSING 1) endif() endif() endif() if(REQUIRE_CRYPTO_NATIVE) set(USE_CRYPTO_NATIVE ON) set(FOUND_CRYPTO ON) elseif(USE_IMPLICIT_CRYPTO) if(ALLOW_CRYPTO_NATIVE AND (NOT FOUND_CRYPTO)) set(USE_CRYPTO_NATIVE ON) set(FOUND_CRYPTO ON) endif() endif() if(FOUND_CRYPTO) if(NOT DEFAULT_CRYPTO) # The preferred order of crypto providers is documented in # manual/installation.rst in the crypto.build section. if(USE_CRYPTO_GNUTLS) set(DEFAULT_CRYPTO "gnutls") elseif(USE_CRYPTO_OPENSSL) set(DEFAULT_CRYPTO "openssl") else() set(DEFAULT_CRYPTO "native") endif() endif() else() message(SEND_ERROR "no crypto provider is available") set(ANYTHING_MISSING 1) endif() if(ANYTHING_MISSING) message(FATAL_ERROR "Missing dependencies; unable to continue") endif() message(STATUS "") message(STATUS "*** Crypto Summary ***") message(STATUS " GNU TLS crypto enabled: " ${USE_CRYPTO_GNUTLS}) message(STATUS " OpenSSL crypto enabled: " ${USE_CRYPTO_OPENSSL}) message(STATUS " Native crypto enabled: " ${USE_CRYPTO_NATIVE}) message(STATUS " Default crypto: " ${DEFAULT_CRYPTO}) message(STATUS "") if(USE_CRYPTO_OPENSSL) list(APPEND libqpdf_SOURCES ${libqpdf_crypto_openssl}) if(NOT EXTERNAL_LIBS) list(APPEND dep_include_directories ${pc_openssl_INCLUDEDIR}) list(APPEND dep_link_directories ${pc_openssl_LIBDIR}) list(APPEND dep_link_libraries ${pc_openssl_LIBRARIES}) endif() endif() if(USE_CRYPTO_GNUTLS) list(APPEND libqpdf_SOURCES ${libqpdf_crypto_gnutls}) list(APPEND dep_include_directories ${pc_gnutls_INCLUDEDIR}) list(APPEND dep_link_directories ${pc_gnutls_LIBDIR}) list(APPEND dep_link_libraries ${pc_gnutls_LIBRARIES}) endif() if(USE_CRYPTO_NATIVE) list(APPEND libqpdf_SOURCES ${libqpdf_crypto_native}) endif() if(APPLE) # 2022: in CI (GitHub actions), pkg-config for zlib was adding a # broken directory to the include path. This effectively filters it # out. list(FILTER dep_include_directories EXCLUDE REGEX "^/Library/") endif() list(REMOVE_DUPLICATES dep_include_directories) list(REMOVE_DUPLICATES dep_link_directories) list(REMOVE_DUPLICATES dep_link_libraries) check_type_size(size_t SIZEOF_SIZE_T) check_include_file("inttypes.h" HAVE_INTTYPES_H) check_symbol_exists(fseeko "stdio.h" HAVE_FSEEKO) check_symbol_exists(fseeko64 "stdio.h" HAVE_FSEEKO64) check_symbol_exists(localtime_r "time.h" HAVE_LOCALTIME_R) check_symbol_exists(random "stdlib.h" HAVE_RANDOM) find_file(RANDOM_DEVICE "urandom" "arandom" "arandom" PATHS "/dev" NO_DEFAULT_PATH) check_c_source_compiles( "#include #include int main(int argc, char* argv[]) { tzset(); printf(\"%ld\", timezone); return 0; }" HAVE_EXTERN_LONG_TIMEZONE) check_c_source_compiles( "#include int main(int argc, char* argv[]) { struct tm tm; tm.tm_gmtoff = 1; return 0; }" HAVE_EXTERN_TM_GMTOFF) check_c_source_compiles( "#include #include int main(int argc, char* argv[]) { int a[sizeof(off_t) >= 8 ? 1 : -1]; }" LFS_WITHOUT_MACROS) check_c_source_compiles( "#define _FILE_OFFSET_BITS 64 #include #include int main(int argc, char* argv[]) { int a[sizeof(off_t) >= 8 ? 1 : -1]; }" LFS_WITH_MACROS) if(LFS_WITH_MACROS AND NOT LFS_WITHOUT_MACROS) set(_FILE_OFFSET_BITS 64) endif() function(qpdf_check_ll_fmt fmt var) if(NOT DEFINED LL_FMT) check_c_source_runs( "#define _CRT_SECURE_NO_WARNINGS #include #include int main(int argc, char* argv[]) { long long int a = 123456789012345ll; char s[30]; sprintf(s, \"${fmt}\", a); return (strcmp(s, \"123456789012345\") == 0) ? 0 : 1; }" ${var}) if(${var}) set(LL_FMT "${fmt}" PARENT_SCOPE) endif() endif() endfunction() qpdf_check_ll_fmt("%lld" fmt_lld) qpdf_check_ll_fmt("%I64d" fmt_i64d) qpdf_check_ll_fmt("%I64lld" fmt_i64lld) configure_file( "${CMAKE_CURRENT_SOURCE_DIR}/qpdf/qpdf-config.h.in" "${CMAKE_CURRENT_BINARY_DIR}/qpdf/qpdf-config.h" NEWLINE_STYLE UNIX) if(NOT BUILD_STATIC_LIBS) set(OBJECT_LIB_IS_PIC ON) else() set(OBJECT_LIB_IS_PIC OFF) endif() # Build an "object library" for use in libtests so we don't have to # export symbols that are not officially part of the public API. If we # are building static libraries, the object library won't use # position-independent code and will provided objects for the static # library. If we are only building the shared library, go ahead and # use PIC for the object library so we don't have to compile twice. set(OBJECT_LIB libqpdf_object) add_library(${OBJECT_LIB} OBJECT ${libqpdf_SOURCES}) if(OBJECT_LIB_IS_PIC) target_compile_definitions(${OBJECT_LIB} PRIVATE libqpdf_EXPORTS) endif() set_target_properties(${OBJECT_LIB} PROPERTIES POSITION_INDEPENDENT_CODE ${OBJECT_LIB_IS_PIC}) target_include_directories(${OBJECT_LIB} SYSTEM PRIVATE ${dep_include_directories}) target_include_directories(${OBJECT_LIB} PUBLIC ${JPEG_INCLUDE} ${qpdf_INCLUDE} ${qpdf_SOURCE_DIR}/libqpdf ${CMAKE_CURRENT_BINARY_DIR}) target_link_directories(${OBJECT_LIB} INTERFACE ${dep_link_directories}) target_link_libraries(${OBJECT_LIB} INTERFACE ${dep_link_libraries}) if(ATOMIC_LIBRARY) target_link_libraries(${OBJECT_LIB} INTERFACE ${ATOMIC_LIBRARY}) endif() set(LD_VERSION_FLAGS "") function(ld_version_script) # Check if the linker supports linker scripts, and use if it does. # This functionality is currently constrained to compilers using GNU # ld on ELF systems or systems that emulation this behavior. set(ld_script "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/qpdf-tmp/conftest.map") file(WRITE ${ld_script} "VERS_1 { global: sym; }; VERS_2 { global: sym; } VERS_1; ") set(CMAKE_REQUIRED_LINK_OPTIONS -Wl,--version-script=${ld_script}) check_c_source_compiles("int main() { return 0; }" HAVE_LD_SCRIPT) if(HAVE_LD_SCRIPT) set(LD_VERSION_FLAGS -Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/libqpdf.map PARENT_SCOPE) configure_file( "${qpdf_SOURCE_DIR}/libqpdf.map.in" "${CMAKE_CURRENT_BINARY_DIR}/libqpdf.map" NEWLINE_STYLE UNIX) endif() endfunction() if(NOT WIN32) ld_version_script() endif() if(BUILD_SHARED_LIBS) set(SHARED_LIB libqpdf) if(OBJECT_LIB_IS_PIC) add_library(${SHARED_LIB} SHARED $) else() add_library(${SHARED_LIB} SHARED ${libqpdf_SOURCES}) endif() if(WIN32) # Goal: the DLL import library should be libqpdf.a or qpdf.lib so # that linking with -lqpdf gets you a shared library link on all # platforms. The DLL should be qpdf${SONAME}.dll rather than just # qpdf.dll. qpdf has always done this, and it gives us some # protection against binary incompatible DLLs being installed. set(SHARED_OUT qpdf${qpdf_SOVERSION}) # Put API version number in DLL if(MINGW) # Reference: Platform/Windows-GNU.cmake in the cmake installation set(CMAKE_SHARED_LIBRARY_PREFIX "") # libqpdf$v.dll -> qpdf$v.dll set(CMAKE_IMPORT_LIBRARY_SUFFIX ".a") # libqpdf.dll.a -> libqpdf.a endif() if(MSVC) # Avoid linker warning from mixing libraries built with /MT and /MD. set_target_properties(${SHARED_LIB} PROPERTIES LINK_FLAGS "/NODEFAULTLIB:LIBCMT /NODEFAULTLIB:LIBCMTD") endif() else() set(SHARED_OUT qpdf) endif() # Setting OUTPUT_NAME and ARCHIVE_OUTPUT_NAME separate enables us to # have a versioned DLL and an unversioned import library, which # gives us semantics similar to ELF shared libraries and makes # linking against qpdf the same across all platforms. set_target_properties(${SHARED_LIB} PROPERTIES OUTPUT_NAME ${SHARED_OUT} ARCHIVE_OUTPUT_NAME qpdf VERSION ${qpdf_LIBVERSION} SOVERSION ${qpdf_SOVERSION} POSITION_INDEPENDENT_CODE ${BUILD_SHARED_LIBS}) target_compile_definitions(${SHARED_LIB} PRIVATE libqpdf_EXPORTS) target_include_directories(${SHARED_LIB} SYSTEM PRIVATE ${dep_include_directories}) target_include_directories(${SHARED_LIB} PUBLIC $ $) target_link_directories(${SHARED_LIB} PRIVATE ${dep_link_directories}) target_link_libraries(${SHARED_LIB} PRIVATE ${dep_link_libraries}) if(ATOMIC_LIBRARY) target_link_libraries(${SHARED_LIB} PRIVATE ${ATOMIC_LIBRARY}) endif() if(LD_VERSION_FLAGS) target_link_options(${SHARED_LIB} PRIVATE ${LD_VERSION_FLAGS}) endif() target_include_directories(${SHARED_LIB} PRIVATE ${qpdf_SOURCE_DIR}/libqpdf ${CMAKE_CURRENT_BINARY_DIR}) install(TARGETS ${SHARED_LIB} EXPORT libqpdfTargets TYPE LIBRARY COMPONENT ${COMPONENT_LIB} NAMELINK_COMPONENT ${COMPONENT_DEV} INCLUDES ${qpdf_INCLUDE}) endif() if(BUILD_STATIC_LIBS) if(BUILD_SHARED_LIBS) set(STATIC_LIB libqpdf_static) else() set(STATIC_LIB libqpdf) endif() if(OBJECT_LIB_IS_PIC) add_library(${STATIC_LIB} STATIC ${libqpdf_SOURCES}) else() add_library(${STATIC_LIB} STATIC $) endif() target_include_directories(${STATIC_LIB} SYSTEM PRIVATE ${dep_include_directories}) target_include_directories(${STATIC_LIB} PUBLIC $ $) target_link_directories(${STATIC_LIB} INTERFACE $ PRIVATE $) target_link_libraries(${STATIC_LIB} INTERFACE ${dep_link_libraries}) if(ATOMIC_LIBRARY) target_link_libraries(${STATIC_LIB} INTERFACE ${ATOMIC_LIBRARY}) endif() # Avoid name clashes on Windows with the the DLL import library. if(NOT DEFINED STATIC_SUFFIX AND BUILD_SHARED_LIBS) if (WIN32) set(STATIC_SUFFIX "_static") else() set(STATIC_SUFFIX "") endif() endif() set_target_properties(${STATIC_LIB} PROPERTIES OUTPUT_NAME qpdf${STATIC_SUFFIX} VERSION ${PROJECT_VERSION}) target_include_directories(${STATIC_LIB} PRIVATE ${qpdf_SOURCE_DIR}/libqpdf ${CMAKE_CURRENT_BINARY_DIR}) install(TARGETS ${STATIC_LIB} EXPORT libqpdfTargets TYPE ARCHIVE COMPONENT ${COMPONENT_DEV} INCLUDES ${qpdf_INCLUDE}) endif() configure_file( "${qpdf_SOURCE_DIR}/libqpdf.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libqpdf.pc" @ONLY NEWLINE_STYLE UNIX) if(INSTALL_PKGCONFIG) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libqpdf.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig COMPONENT ${COMPONENT_DEV}) endif() if(INSTALL_CMAKE_PACKAGE) include(CMakePackageConfigHelpers) configure_package_config_file( ${qpdf_SOURCE_DIR}/qpdfConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/qpdfConfig.cmake INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/qpdf) write_basic_package_version_file( "${CMAKE_CURRENT_BINARY_DIR}/qpdfConfigVersion.cmake" VERSION ${PROJECT_VERSION} COMPATIBILITY SameMajorVersion) install(EXPORT libqpdfTargets NAMESPACE qpdf:: FILE libqpdfTargets.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/qpdf) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/qpdfConfigVersion.cmake ${CMAKE_CURRENT_BINARY_DIR}/qpdfConfig.cmake DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/qpdf) endif() if(CHECK_SIZES AND BUILD_SHARED_LIBS AND (CMAKE_SYSTEM_NAME STREQUAL "Linux")) # We can only do this check on a system with ELF shared libraries. # Since this is a maintainer-only option, testing for Linux is a # close enough approximation. add_test( NAME check-sizes COMMAND ${qpdf_SOURCE_DIR}/check_abi check-sizes --lib $) endif()