diff options
Diffstat (limited to 'gnu/packages')
| -rw-r--r-- | gnu/packages/llvm.scm | 37 | ||||
| -rw-r--r-- | gnu/packages/patches/clang-libc-search-path.patch | 19 |
2 files changed, 54 insertions, 2 deletions
diff --git a/gnu/packages/llvm.scm b/gnu/packages/llvm.scm index 946773c91e..1755f9c014 100644 --- a/gnu/packages/llvm.scm +++ b/gnu/packages/llvm.scm @@ -26,6 +26,8 @@ #:use-module (guix build-system gnu) #:use-module (guix build-system cmake) #:use-module (gnu packages) + #:use-module (gnu packages gcc) + #:use-module (gnu packages bootstrap) ;glibc-dynamic-linker #:use-module (gnu packages perl) #:use-module (gnu packages python) #:use-module (gnu packages xml)) @@ -85,7 +87,8 @@ tools as well as libraries with equivalent functionality.") (method url-fetch) (uri (string-append "http://llvm.org/releases/" version "/cfe-" version ".src.tar.xz")) - (sha256 (base32 hash)))) + (sha256 (base32 hash)) + (patches (list (search-patch "clang-libc-search-path.patch"))))) ;; Using cmake allows us to treat llvm as an external library. There ;; doesn't seem to be any way to do this with clang's autotools-based ;; build system. @@ -93,10 +96,40 @@ tools as well as libraries with equivalent functionality.") (native-inputs (package-native-inputs llvm)) (inputs `(("libxml2" ,libxml2) + ("gcc-lib" ,gcc-4.9 "lib") ,@(package-inputs llvm))) (propagated-inputs `(("llvm" ,llvm))) - (arguments `(#:configure-flags '("-DCLANG_INCLUDE_TESTS=True"))) + (arguments + `(#:configure-flags + (list "-DCLANG_INCLUDE_TESTS=True" + + ;; Find libgcc_s, crtbegin.o, and crtend.o. + (string-append "-DGCC_INSTALL_PREFIX=" + (assoc-ref %build-inputs "gcc-lib")) + + ;; Use a sane default include directory. + (string-append "-DC_INCLUDE_DIRS=" + (assoc-ref %build-inputs "libc") + "/include")) + + #:phases (modify-phases %standard-phases + (add-after + 'unpack 'set-glibc-file-names + (lambda* (#:key inputs #:allow-other-keys) + (let ((libc (assoc-ref inputs "libc"))) + ;; Patch the 'getLinuxDynamicLinker' function to that + ;; it uses the right dynamic linker file name. + (substitute* "lib/Driver/Tools.cpp" + (("/lib64/ld-linux-x86-64.so.2") + (string-append libc + ,(glibc-dynamic-linker)))) + + ;; Same for libc's libdir, to allow crt1.o & co. to be + ;; found. + (substitute* "lib/Driver/ToolChains.cpp" + (("@GLIBC_LIBDIR@") + (string-append libc "/lib"))))))))) ;; Clang supports the same environment variables as GCC. (native-search-paths diff --git a/gnu/packages/patches/clang-libc-search-path.patch b/gnu/packages/patches/clang-libc-search-path.patch new file mode 100644 index 0000000000..327336ac09 --- /dev/null +++ b/gnu/packages/patches/clang-libc-search-path.patch @@ -0,0 +1,19 @@ +Clang attempts to guess file names based on the OS and distro (yes!), +but unfortunately, that doesn't work for us. + +This patch makes it easy to insert libc's $libdir so that Clang passes the +correct absolute file name of crt1.o etc. to 'ld'. + +--- cfe-3.6.0.src/lib/Driver/ToolChains.cpp 2015-02-18 22:03:07.000000000 +0100 ++++ cfe-3.6.0.src/lib/Driver/ToolChains.cpp 2015-06-19 16:37:20.459701044 +0200 +@@ -3085,6 +3085,10 @@ Linux::Linux(const Driver &D, const llvm + + addPathIfExists(SysRoot + "/lib", Paths); + addPathIfExists(SysRoot + "/usr/lib", Paths); ++ ++ // Add libc's lib/ directory to the search path, so that crt1.o, crti.o, ++ // and friends can be found. ++ addPathIfExists("@GLIBC_LIBDIR@", Paths); + } + + bool Linux::HasNativeLLVMSupport() const { |