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52 lines
1.6 KiB
CMake
52 lines
1.6 KiB
CMake
# Specify regular expression implementation
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find_package(PCRE)
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if(REGEX_BACKEND STREQUAL "")
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check_symbol_exists(regcomp_l "regex.h;xlocale.h" HAVE_REGCOMP_L)
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if(HAVE_REGCOMP_L)
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set(REGEX_BACKEND "regcomp_l")
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elseif(PCRE_FOUND)
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set(REGEX_BACKEND "pcre")
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else()
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set(REGEX_BACKEND "builtin")
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endif()
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endif()
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if(REGEX_BACKEND STREQUAL "regcomp_l")
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add_feature_info(regex ON "using system regcomp_l")
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set(GIT_REGEX_REGCOMP_L 1)
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elseif(REGEX_BACKEND STREQUAL "pcre2")
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find_package(PCRE2)
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if(NOT PCRE2_FOUND)
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MESSAGE(FATAL_ERROR "PCRE2 support was requested but not found")
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endif()
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add_feature_info(regex ON "using system PCRE2")
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set(GIT_REGEX_PCRE2 1)
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list(APPEND LIBGIT2_SYSTEM_INCLUDES ${PCRE2_INCLUDE_DIRS})
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list(APPEND LIBGIT2_SYSTEM_LIBS ${PCRE2_LIBRARIES})
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list(APPEND LIBGIT2_PC_REQUIRES "libpcre2-8")
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elseif(REGEX_BACKEND STREQUAL "pcre")
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add_feature_info(regex ON "using system PCRE")
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set(GIT_REGEX_PCRE 1)
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list(APPEND LIBGIT2_SYSTEM_INCLUDES ${PCRE_INCLUDE_DIRS})
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list(APPEND LIBGIT2_SYSTEM_LIBS ${PCRE_LIBRARIES})
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list(APPEND LIBGIT2_PC_REQUIRES "libpcre")
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elseif(REGEX_BACKEND STREQUAL "regcomp")
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add_feature_info(regex ON "using system regcomp")
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set(GIT_REGEX_REGCOMP 1)
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elseif(REGEX_BACKEND STREQUAL "builtin")
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add_feature_info(regex ON "using bundled PCRE")
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set(GIT_REGEX_BUILTIN 1)
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add_subdirectory("${PROJECT_SOURCE_DIR}/deps/pcre" "${PROJECT_BINARY_DIR}/deps/pcre")
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list(APPEND LIBGIT2_DEPENDENCY_INCLUDES "${PROJECT_SOURCE_DIR}/deps/pcre")
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list(APPEND LIBGIT2_DEPENDENCY_OBJECTS $<TARGET_OBJECTS:pcre>)
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else()
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message(FATAL_ERROR "The REGEX_BACKEND option provided is not supported")
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endif()
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