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build.zig: Forward LLVM lib/include dirs from CMake

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Previously, you might obtain `-lLLVM-15` from the CMake configuration,
but we might not be able to locate the library if it's not in your
system library path.
This commit is contained in:
Cody Tapscott 2022-10-08 13:15:49 -07:00
parent 7f508480f4
commit 350a88ddf4
2 changed files with 16 additions and 0 deletions
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14
build.zig
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@ -554,6 +554,8 @@ fn addCmakeCfgOptionsToExe(
}) catch unreachable);
assert(cfg.lld_include_dir.len != 0);
exe.addIncludePath(cfg.lld_include_dir);
exe.addIncludePath(cfg.llvm_include_dir);
exe.addLibraryPath(cfg.llvm_lib_dir);
addCMakeLibraryList(exe, cfg.clang_libraries);
addCMakeLibraryList(exe, cfg.lld_libraries);
addCMakeLibraryList(exe, cfg.llvm_libraries);
@ -684,6 +686,8 @@ const CMakeConfig = struct {
lld_include_dir: []const u8,
lld_libraries: []const u8,
clang_libraries: []const u8,
llvm_lib_dir: []const u8,
llvm_include_dir: []const u8,
llvm_libraries: []const u8,
dia_guids_lib: []const u8,
};
@ -745,6 +749,8 @@ fn parseConfigH(b: *Builder, config_h_text: []const u8) ?CMakeConfig {
.lld_include_dir = undefined,
.lld_libraries = undefined,
.clang_libraries = undefined,
.llvm_lib_dir = undefined,
.llvm_include_dir = undefined,
.llvm_libraries = undefined,
.dia_guids_lib = undefined,
};
@ -782,6 +788,14 @@ fn parseConfigH(b: *Builder, config_h_text: []const u8) ?CMakeConfig {
.prefix = "#define ZIG_DIA_GUIDS_LIB ",
.field = "dia_guids_lib",
},
.{
.prefix = "#define ZIG_LLVM_INCLUDE_PATH ",
.field = "llvm_include_dir",
},
.{
.prefix = "#define ZIG_LLVM_LIB_PATH ",
.field = "llvm_lib_dir",
},
// .prefix = ZIG_LLVM_LINK_MODE parsed manually below
};

2
src/stage1/config.h.in
View File

@ -22,6 +22,8 @@
#define ZIG_LLD_INCLUDE_PATH "@LLD_INCLUDE_DIRS@"
#define ZIG_LLD_LIBRARIES "@LLD_LIBRARIES@"
#define ZIG_CLANG_LIBRARIES "@CLANG_LIBRARIES@"
#define ZIG_LLVM_INCLUDE_PATH "@LLVM_INCLUDE_DIRS@"
#define ZIG_LLVM_LIB_PATH "@LLVM_LIBDIRS@"
#define ZIG_LLVM_LIBRARIES "@LLVM_LIBRARIES@"
#define ZIG_DIA_GUIDS_LIB "@ZIG_DIA_GUIDS_LIB_ESCAPED@"