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config_clang_done: return()
defineReplace(extractVersion) { return($$replace(1, ^(\\d+\\.\\d+\\.\\d+)(svn)?$, \\1)) }
defineReplace(extractMajorVersion) { return($$replace(1, ^(\\d+)\\.\\d+\\.\\d+(svn)?$, \\1)) }
defineReplace(extractMinorVersion) { return($$replace(1, ^\\d+\\.(\\d+)\\.\\d+(svn)?$, \\1)) }
defineReplace(extractPatchVersion) { return($$replace(1, ^\\d+\\.\\d+\\.(\\d+)(svn)?$, \\1)) }
defineTest(versionIsAtLeast) {
actual_major_version = $$extractMajorVersion($$1)
actual_minor_version = $$extractMinorVersion($$1)
actual_patch_version = $$extractPatchVersion($$1)
required_min_major_version = $$extractMajorVersion($$2)
required_min_minor_version = $$extractMinorVersion($$2)
required_min_patch_version = $$extractPatchVersion($$2)
isEqual(actual_major_version, $$required_min_major_version) {
isEqual(actual_minor_version, $$required_min_minor_version) {
isEqual(actual_patch_version, $$required_min_patch_version): return(true)
greaterThan(actual_patch_version, $$required_min_patch_version): return(true)
}
greaterThan(actual_minor_version, $$required_min_minor_version): return(true)
}
greaterThan(actual_major_version, $$required_min_major_version): return(true)
return(false)
}
defineReplace(findLLVMVersionFromLibDir) {
libdir = $$1
version_dirs = $$files($$libdir/clang/*)
for (version_dir, version_dirs) {
fileName = $$basename(version_dir)
version = $$find(fileName, ^(\\d+\\.\\d+\\.\\d+)$)
!isEmpty(version) {
isEmpty(candidateVersion): candidateVersion = $$version
else: versionIsAtLeast($$version, $$candidateVersion): candidateVersion = $$version
}
}
return($$candidateVersion)
}
for(_, $$list(_)) { # just a way to break easily
isEmpty(LLVM_INSTALL_DIR): LLVM_INSTALL_DIR = $$(LLVM_INSTALL_DIR)
LLVM_INSTALL_DIR = $$clean_path($$LLVM_INSTALL_DIR)
contains(QMAKE_HOST.arch, x86_64): \
clangInstallDir = $$replace(LLVM_INSTALL_DIR, _ARCH_, 64)
else: \
clangInstallDir = $$replace(LLVM_INSTALL_DIR, _ARCH_, 32)
isEmpty(LLVM_INSTALL_DIR) {
win32 {
log("Set the LLVM_INSTALL_DIR environment variable to configure clang location.$$escape_expand(\\n)")
break()
}
clangInstallDir = /usr
}
# note: llvm_config only exits on unix
llvm_config = $$clangInstallDir/bin/llvm-config
exists($$llvm_config) {
CLANG_LIBDIR = $$system("$$llvm_config --libdir 2>/dev/null")
CLANG_INCLUDEPATH = $$system("$$llvm_config --includedir 2>/dev/null")
output = $$system("$$llvm_config --version 2>/dev/null")
CLANG_VERSION = $$extractVersion($$output)
} else {
CLANG_LIBDIR = $$clangInstallDir/lib
CLANG_INCLUDEPATH = $$clangInstallDir/include
CLANG_VERSION = $$findLLVMVersionFromLibDir($$CLANG_LIBDIR)
}
isEmpty(CLANG_VERSION) {
!isEmpty(LLVM_INSTALL_DIR): \
error("Cannot determine clang version at $${clangInstallDir}.")
log("Set the LLVM_INSTALL_DIR environment variable to configure clang location.$$escape_expand(\\n)")
break()
}
LIBCLANG_MAIN_HEADER = $$CLANG_INCLUDEPATH/clang-c/Index.h
!exists($$LIBCLANG_MAIN_HEADER) {
!isEmpty(LLVM_INSTALL_DIR): \
error("Cannot find libclang's main header file, candidate: $${LIBCLANG_MAIN_HEADER}.")
log("Set the LLVM_INSTALL_DIR environment variable to configure clang location.$$escape_expand(\\n)")
break()
}
!contains(QMAKE_DEFAULT_LIBDIRS, $$CLANG_LIBDIR): CLANG_LIBS = -L$${CLANG_LIBDIR}
win32: \
CLANG_LIBS += -llibclang -ladvapi32 -lshell32
else: \
CLANG_LIBS += -lclang
!versionIsAtLeast($$CLANG_VERSION, "3.9.0") {
log("LLVM/Clang version >= 3.9.0 required, version provided: $$CLANG_VERSION.$$escape_expand(\\n)")
log("Clang was found in $$LLVM_INSTALL_DIR. Set the LLVM_INSTALL_DIR environment variable to override.$$escape_expand(\\n)")
break()
}
cache(CLANG_LIBS)
cache(CLANG_INCLUDEPATH)
cache(CLANG_LIBDIR)
cache(CLANG_VERSION)
cache(CONFIG, add, $$list(config_clang))
}
cache(CONFIG, add, $$list(config_clang_done))
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