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# manual/installation.rst mentions the minimum cmake version. | ||
cmake_minimum_required(VERSION 3.16) | ||
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# make_dist expects the version line to be on a line by itself after | ||
# the project line. | ||
project(qpdf | ||
VERSION 10.6.3 | ||
LANGUAGES C CXX) | ||
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# Enable correct rpath handling for MacOSX | ||
cmake_policy(SET CMP0042 NEW) | ||
# Honor CMAKE_REQUIRED_LIBRARIES when checking for include files | ||
cmake_policy(SET CMP0075 NEW) | ||
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# *** OPTIONS *** | ||
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# Keep all options here. It's easier to see the interdependencies this | ||
# way than spreading them throughout the files. | ||
# | ||
# ***** Keep manual/installation.rst (_build-options) up to date. ***** | ||
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include(CMakeDependentOption) | ||
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# CMAKE_DEPENDENT_OPTION( | ||
# OPTION "Description" default-value-if-visible | ||
# "when-visible" value-if-not-visible) | ||
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# Don't write tests based on MAINTAINER_MODE or CI_MODE. Instead, use | ||
# them as the basis for dependent options. | ||
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option(MAINTAINER_MODE "Set options for developing qpdf" OFF) | ||
CMAKE_DEPENDENT_OPTION( | ||
CI_MODE "Set options for running in CI" OFF | ||
"NOT MAINTAINER_MODE" OFF) | ||
CMAKE_DEPENDENT_OPTION( | ||
WERROR "Treat compiler warnings as errors" OFF | ||
"NOT MAINTAINER_MODE; NOT CI_MODE" ON) | ||
CMAKE_DEPENDENT_OPTION( | ||
GENERATE_AUTO_JOB "Automatically regenerate job files" OFF | ||
"NOT MAINTAINER_MODE" ON) | ||
CMAKE_DEPENDENT_OPTION( | ||
SHOW_FAILED_TEST_OUTPUT "Show qtest output on failure" OFF | ||
"NOT CI_MODE" ON) | ||
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# To allow building doc to be disabled in maintainer mode, handle the | ||
# condition manually rather than using a dependent option. | ||
if(MAINTAINER_MODE) | ||
set(default_BUILD_DOC ON) | ||
else() | ||
set(default_BUILD_DOC OFF) | ||
endif() | ||
option(BUILD_DOC "Build documentation" ${default_BUILD_DOC}) | ||
# The values of BUILD_DOC_HTML and BUILD_DOC_PDF are ignored without | ||
# BUILD_DOC, so setting them to ON when not visible forces them to be | ||
# on in MAINTAINER_MODE and is harmless if BUILD_DOC is off. | ||
CMAKE_DEPENDENT_OPTION( | ||
BUILD_DOC_HTML "Build HTML documentation" | ||
ON "BUILD_DOC;NOT MAINTAINER_MODE" ON) | ||
CMAKE_DEPENDENT_OPTION( | ||
BUILD_DOC_PDF "Build PDF documentation" | ||
ON "BUILD_DOC;NOT MAINTAINER_MODE" ON) | ||
CMAKE_DEPENDENT_OPTION( | ||
BUILD_DOC_DIST "Create distribution of manual" ON | ||
"BUILD_DOC_PDF;BUILD_DOC_HTML" OFF) | ||
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option(BUILD_SHARED_LIBS "Build qpdf shared libraries" ON) | ||
option(BUILD_STATIC_LIBS "Build qpdf static libraries" ON) | ||
option(QTEST_COLOR "Whether qtest's output should be in color" ON) | ||
option(USE_INSECURE_RANDOM "Use insecure random numbers" OFF) | ||
option(SKIP_OS_SECURE_RANDOM | ||
"Suppress use of OS-provided secure random numbers" OFF) | ||
CMAKE_DEPENDENT_OPTION( | ||
AVOID_WINDOWS_HANDLE "Avoid use of HANDLE in Windows" OFF | ||
"WIN32" OFF) | ||
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option(OSS_FUZZ "Specific build configuration for the oss-fuzz project" OFF) | ||
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option(USE_IMPLICIT_CRYPTO "Enable any available external crypto provider" ON) | ||
CMAKE_DEPENDENT_OPTION( | ||
ALLOW_CRYPTO_NATIVE "Allow native crypto as as fallback" ON | ||
"USE_IMPLICIT_CRYPTO" OFF) | ||
CMAKE_DEPENDENT_OPTION( | ||
REQUIRE_CRYPTO_NATIVE "Require native crypto provider" OFF | ||
"NOT MAINTAINER_MODE; NOT CI_MODE" ON) | ||
option(REQUIRE_CRYPTO_OPENSSL "Require openssl crypto" OFF) | ||
option(REQUIRE_CRYPTO_GNUTLS "Require gnutls crypto" OFF) | ||
set(DEFAULT_CRYPTO CACHE STRING "") | ||
option(DEFAULT_CRYPTO | ||
"Specify default crypto; otherwise chosen automatically" "") | ||
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# INSTALL_MANUAL is not dependent on building docs. When creating some | ||
# distributions, we build the doc in one run, copy doc-dist in, and | ||
# install it elsewhere. | ||
option(INSTALL_MANUAL "Install documentation" OFF) | ||
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option(INSTALL_PKGCONFIG "Install pkgconfig file" ON) | ||
option(INSTALL_CMAKE_PACKAGE "Install cmake package files" ON) | ||
option(INSTALL_EXAMPLES "Install example files" ON) | ||
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# *** END OPTIONS *** | ||
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if(NOT (BUILD_STATIC_LIBS OR BUILD_SHARED_LIBS)) | ||
message( | ||
FATAL_ERROR "At least one of static or shared libraries must be built") | ||
endif() | ||
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add_compile_definitions($<$<COMPILE_LANGUAGE:CXX>:POINTERHOLDER_TRANSITION=2>) | ||
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enable_testing() | ||
set(RUN_QTEST perl ${qpdf_SOURCE_DIR}/run-qtest) | ||
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if(WIN32) | ||
find_program(COPY_COMMAND NAMES cp copy) | ||
if(COPY_COMMAND STREQUAL "COPY_COMMAND-NOTFOUND") | ||
set(COPY_COMMAND "copy") | ||
endif() | ||
else() | ||
set(COPY_COMMAND "cp") | ||
endif() | ||
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# For a long time, qpdf used libtool's version system. We are no | ||
# longer doing that, but to avoid potential conflict with older | ||
# versions, continue to have the shared library symlink point to a | ||
# file whose version shares minor and patch with the project version | ||
# and major with the SOVERSION. Starting with the transition to cmake, | ||
# increment SOVERSION every time we increment the project major | ||
# version. This works because qpdf uses semantic versioning. qpdf 10.x | ||
# was libqpdf28, so start from there. | ||
math(EXPR qpdf_SOVERSION "${PROJECT_VERSION_MAJOR} + 18") | ||
set(qpdf_LIBVERSION ${qpdf_SOVERSION}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}) | ||
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if(${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR}) | ||
message(FATAL_ERROR " | ||
Please build with cmake in a subdirectory, e.g. | ||
mkdir build | ||
cmake .. | ||
cmake --build . | ||
Please remove CMakeCache.txt and the CMakeFiles directories.") | ||
endif() | ||
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set(CMAKE_CXX_STANDARD 14) | ||
set(CMAKE_CXX_EXTENSIONS OFF) | ||
set(CMAKE_CXX_STANDARD_REQUIRED ON) | ||
set(CMAKE_C_VISIBILITY_PRESET hidden) | ||
set(CMAKE_CXX_VISIBILITY_PRESET hidden) | ||
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake") | ||
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if(WIN32 AND NOT SKIP_OS_SECURE_RANDOM) | ||
list(APPEND CMAKE_REQUIRED_LIBRARIES Advapi32) | ||
endif() | ||
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include(CheckCXXSourceCompiles) | ||
function(check_atomic) | ||
foreach(I 0 1) | ||
if(I) | ||
set(CMAKE_REQUIRED_LIBRARIES atomic) | ||
endif() | ||
check_cxx_source_compiles( | ||
"#include <atomic> | ||
int main() { | ||
static std::atomic<int> a{0}; | ||
a = a.fetch_add(1); | ||
return 0; | ||
}" | ||
ATOMIC_WORKED${I}) | ||
if(ATOMIC_WORKED0) | ||
return() | ||
endif() | ||
endforeach() | ||
if(ATOMIC_WORKED1) | ||
list(APPEND CMAKE_REQUIRED_LIBRARIES atomic) | ||
endif() | ||
endfunction() | ||
check_atomic() | ||
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set(WINDOWS_WMAIN_COMPILE "") | ||
set(WINDOWS_WMAIN_LINK "") | ||
if(WIN32) | ||
function(check_wmain) | ||
foreach(I 0 1) | ||
if(NOT WINDOWS_WMAIN_COMPILE) | ||
if(I) | ||
set(CMAKE_REQUIRED_LINK_OPTIONS -municode) | ||
endif() | ||
check_cxx_source_compiles( | ||
"#include <windows.h> | ||
#include <string.h> | ||
#include <stdio.h> | ||
extern \"C\" | ||
int wmain(int argc, wchar_t* argv[]) | ||
{ | ||
size_t x = wcslen(argv[0]); | ||
return 0; | ||
} | ||
" | ||
WMAIN_WORKED${I}) | ||
endif() | ||
endforeach() | ||
if(WMAIN_WORKED1 OR WMAIN_WORKED1) | ||
set(WINDOWS_WMAIN_COMPILE -DWINDOWS_WMAIN PARENT_SCOPE) | ||
if(WMAIN_WORKED1 AND NOT WMAIN_WORKED0) | ||
set(WINDOWS_WMAIN_LINK -municode PARENT_SCOPE) | ||
endif() | ||
endif() | ||
endfunction() | ||
check_wmain() | ||
endif() | ||
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if(MSVC) | ||
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS -link setargv.obj) | ||
list(APPEND WINDOWS_WMAIN_LINK -link wsetargv.obj) | ||
endif() | ||
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include(GNUInstallDirs) | ||
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# Compiler flags | ||
# | ||
# **NOTE** -- each flag must have its own cache variable. | ||
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include(qpdfCheckFlag) | ||
if(WERROR) | ||
if(MSVC) | ||
add_compile_options(/WX) | ||
else() | ||
qpdf_maybe_add_flag(C -Werror flag_werror) | ||
endif() | ||
endif() | ||
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if(MSVC) | ||
# /Gy combines identical functions -- useful with C++ templates | ||
add_compile_options(/Gy) | ||
add_compile_options(/W3) # warning level 3 | ||
else() | ||
qpdf_maybe_add_flag(C -Wall flag_wall) | ||
qpdf_maybe_add_flag(C -Wconversion flag_conversion) | ||
qpdf_maybe_add_flag(C -Wsign-conversion flag_sign-conversion) | ||
qpdf_maybe_add_flag(C -Wshadow=local flag_shadow_local) | ||
qpdf_maybe_add_flag(CXX -Wold-style-cast flag_old-style-cast) | ||
endif() | ||
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# We don't include the jpeg library's include path in the PUBLIC | ||
# interface for libqpdf since only Pl_DCT.hh requires it. This is | ||
# documented. Some examples and tests use it though so we have to | ||
# define it. CMakeLists.txt for libqpdf sets the value for | ||
# JPEG_INCLUDE which can be selectively added to include paths other | ||
# tools. | ||
set(JPEG_INCLUDE) | ||
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if(${CMAKE_SIZEOF_VOID_P} EQUAL 8) | ||
set(WORDSIZE 64) | ||
else() | ||
set(WORDSIZE 32) | ||
endif() | ||
if(MSVC) | ||
set(CPACK_SYSTEM_NAME "msvc${WORDSIZE}") | ||
elseif(MINGW) | ||
set(CPACK_SYSTEM_NAME "mingw${WORDSIZE}") | ||
endif() | ||
set(CPACK_RESOURCE_FILE_LICENSE "${qpdf_SOURCE_DIR}/LICENSE.txt") | ||
set(CPACK_PACKAGE_HOMEPAGE_URL "https://qpdf.sourceforge.io/") | ||
set(CPACK_NSIS_MUI_ICON "${qpdf_SOURCE_DIR}/logo/qpdf.ico") | ||
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include(CPack) | ||
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# Install components -- documented in _installation in | ||
# manual/installation.rst. | ||
set(COMPONENT_DEV "dev") | ||
set(COMPONENT_LIB "lib") # runtime library | ||
set(COMPONENT_CLI "cli") | ||
set(COMPONENT_DOC "doc") | ||
set(COMPONENT_EXAMPLES "examples") # example sources | ||
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if(WIN32) | ||
include(InstallRequiredSystemLibraries) | ||
endif() | ||
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# add_subdirectory order affects test order | ||
add_subdirectory(include) | ||
add_subdirectory(libqpdf) | ||
add_subdirectory(qpdf) | ||
add_subdirectory(libtests) | ||
add_subdirectory(examples) | ||
add_subdirectory(zlib-flate) | ||
add_subdirectory(manual) | ||
add_subdirectory(fuzz) | ||
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# We don't need to show everything -- just the things that we really | ||
# need to be sure are right or that are turned on or off with complex | ||
# logic. | ||
get_property(MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) | ||
message(STATUS "") | ||
message(STATUS "*** Summary ***") | ||
message(STATUS " qpdf version: ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}") | ||
if(MULTI_CONFIG) | ||
message(STATUS " build type: specify --config at build time") | ||
elseif(CMAKE_BUILD_TYPE) | ||
message(STATUS " build type: ${CMAKE_BUILD_TYPE}") | ||
endif() | ||
message(STATUS " build shared libraries: ${BUILD_SHARED_LIBS}") | ||
message(STATUS " build static libraries: ${BUILD_STATIC_LIBS}") | ||
message(STATUS " build manual: ${BUILD_DOC}") | ||
message(STATUS " compiler warnings are errors: ${WERROR}") | ||
message(STATUS " system: ${CPACK_SYSTEM_NAME}") | ||
message(STATUS "") | ||
message(STATUS "*** Options Summary ***") | ||
foreach(PROP | ||
COMPILE_OPTIONS INTERFACE_COMPILE_OPTIONS | ||
COMPILE_DEFINITIONS INTERFACE_COMPILE_DEFINITIONS | ||
INCLUDE_DIRECTORIES INTERFACE_INCLUDE_DIRECTORIES | ||
INTERFACE_SYSTEM_INCLUDE_DIRECTORIES | ||
LINK_OPTIONS INTERFACE_LINK_OPTIONS | ||
LINK_LIBRARIES INTERFACE_LINK_LIBRARIES | ||
LINK_DIRECTORIES INTERFACE_LINK_DIRECTORIES) | ||
get_target_property(VAL libqpdf ${PROP}) | ||
if(NOT (VAL STREQUAL "VAL-NOTFOUND")) | ||
message(STATUS " ${PROP}: ${VAL}") | ||
endif() | ||
endforeach() | ||
if(APPLE) | ||
message(STATUS " CMAKE_OSX_SYSROOT: ${CMAKE_OSX_SYSROOT}") | ||
endif() | ||
message(STATUS "") | ||
message(STATUS "See above for crypto summary.") | ||
message(STATUS "") | ||
if(NOT (MULTI_CONFIG OR CMAKE_BUILD_TYPE)) | ||
message(WARNING " CMAKE_BUILD_TYPE is not set; using default settings") | ||
endif() |
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include(CheckCXXCompilerFlag) | ||
include(CheckCCompilerFlag) | ||
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function(qpdf_maybe_add_flag lang flag var) | ||
if(${lang} STREQUAL "C") | ||
check_c_compiler_flag(${flag} ${var}) | ||
elseif(${lang} STREQUAL "CXX") | ||
check_cxx_compiler_flag(${flag} ${var}) | ||
endif() | ||
if(${var}) | ||
message(STATUS "Using ${flag}: YES") | ||
if(${lang} STREQUAL "C") | ||
# Add for C and C++ | ||
add_compile_options(${flag}) | ||
else() | ||
add_compile_options($<$<COMPILE_LANGUAGE:CXX>:${flag}>) | ||
endif() | ||
else() | ||
message(STATUS "Using ${flag}: NO") | ||
endif() | ||
endfunction() |
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