019af62294
Compile with the preprocessor definitions necessary for the `arc4random`
family so it's available even when compiler extensions are not enabled.
Similar things are done in cmbzip2, cmcurl, cmlibarchive, cmliblizma and
cmlibuv.
This issue surfaced on a nightly bot after glibc 2.36 added arc4random
functions. cmlibarchive defines the necessary macro, but also relies on
`HAVE_ARC4RANDOM_BUF`. cmlibarchive's check with the necessary macro
defined was skipped due to cmexpat running the same check before, but
without the macros, and it being cached.
This extends commit c7c3e39e4f (Utilities: Activate POSIX APIs even
without compiler extensions, 2022-06-02, v3.24.0-rc1~34^2) to cover our
build of expat too.
Issue: #20454
34 lines
893 B
CMake
34 lines
893 B
CMake
# Disable warnings to avoid changing 3rd party code.
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IF(CMAKE_C_COMPILER_ID MATCHES
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"^(GNU|LCC|Clang|AppleClang|IBMClang|XLClang|XL|VisualAge|SunPro|HP|Intel|IntelLLVM|NVHPC)$")
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SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w")
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ELSEIF(CMAKE_C_COMPILER_ID STREQUAL "PathScale")
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SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -woffall")
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ENDIF()
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# Activate POSIX APIs.
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if(CMAKE_SYSTEM_NAME MATCHES "^(Linux)$")
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add_definitions(-D_DEFAULT_SOURCE -D_BSD_SOURCE)
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string(APPEND CMAKE_REQUIRED_DEFINITIONS " -D_DEFAULT_SOURCE -D_BSD_SOURCE")
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endif()
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include(ConfigureChecks.cmake)
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configure_file(expat_config.h.cmake expat_config.h @ONLY)
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if(NOT WIN32)
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add_definitions(-DXML_DEV_URANDOM)
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endif()
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include_directories(
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${CMAKE_CURRENT_BINARY_DIR}
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${CMAKE_CURRENT_SOURCE_DIR}/lib
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)
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add_library(cmexpat STATIC
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lib/xmlparse.c
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lib/xmlrole.c
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lib/xmltok.c
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lib/xmltok_impl.c
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lib/xmltok_ns.c
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)
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