diff options
Diffstat (limited to 'debian/patches/bootstrap-fix-include-next.diff')
-rw-r--r-- | debian/patches/bootstrap-fix-include-next.diff | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/debian/patches/bootstrap-fix-include-next.diff b/debian/patches/bootstrap-fix-include-next.diff new file mode 100644 index 0000000..87514b5 --- /dev/null +++ b/debian/patches/bootstrap-fix-include-next.diff @@ -0,0 +1,41 @@ +When doing a bootstrap, we use a newly built clang. +When this one is used, if already installed on the system, +we have clang header in two places: +llvm-toolchain-7-7/build-llvm/lib/clang/7.0.0/include/inttypes.h +and +/usr/include/clang/7.0.0/include/inttypes.h + +Because clang expects only one of his headers to be available, it uses +include_next to get the glibc (libc6-dev package) header. + +However, in the previous example, because we have inttypes.h twice in the +include search path, clang's header will call itself without any effect. +Therefore, it will do include_next until the define from the libc is existing (ex: _INTTYPES_H) + + +Index: llvm-toolchain-7-7/clang/lib/Headers/inttypes.h +=================================================================== +--- llvm-toolchain-7-7.orig/clang/lib/Headers/inttypes.h ++++ llvm-toolchain-7-7/clang/lib/Headers/inttypes.h +@@ -20,7 +20,7 @@ + * + \*===----------------------------------------------------------------------===*/ + +-#ifndef __CLANG_INTTYPES_H ++#if !defined(__CLANG_INTTYPES_H) || !defined(_INTTYPES_H) + #define __CLANG_INTTYPES_H + + #if defined(_MSC_VER) && _MSC_VER < 1800 +Index: llvm-toolchain-7-7/clang/lib/Headers/limits.h +=================================================================== +--- llvm-toolchain-7-7.orig/clang/lib/Headers/limits.h ++++ llvm-toolchain-7-7/clang/lib/Headers/limits.h +@@ -22,7 +22,7 @@ + * + \*===----------------------------------------------------------------------===*/ + +-#ifndef __CLANG_LIMITS_H ++#if !defined(__CLANG_LIMITS_H) || !defined(_LIBC_LIMITS_H_) + #define __CLANG_LIMITS_H + + /* The system's limits.h may, in turn, try to #include_next GCC's limits.h. |