gout

A static git page generator
git clone https://git.bracken.jp/gout.git
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BUILD.gn (2224B)

      1 # Default language standards.
      2 config("compiler_std") {
      3   cflags_c = [ "-std=c11" ]
      4   cflags_cc = [ "-std=c++17" ]
      5   cflags_objcc = [ "-std=c++17" ]
      6 }
      7 
      8 config("posix_env") {
      9   defines = [
     10     "_POSIX_C_SOURCE=200809L",
     11     "_XOPEN_SOURCE=700",
     12   ]
     13 
     14   if (target_os == "linux") {
     15     defines += [ "_DEFAULT_SOURCE" ]
     16   } else if (target_os == "mac") {
     17     defines += [ "_DARWIN_C_SOURCE" ]
     18   }
     19 }
     20 
     21 # Default compiler warnings.
     22 config("compiler_warnings") {
     23   cflags = [
     24     "-Wall",
     25     "-Wextra",
     26     "-Werror",
     27   ]
     28   cflags_cc = []
     29   cflags_objcc = []
     30 }
     31 
     32 config("strict_prototypes") {
     33   cflags = [
     34     "-Wmissing-prototypes",
     35     "-Wstrict-prototypes",
     36   ]
     37 }
     38 
     39 # Test-specific warnings (relaxed for test fixtures).
     40 config("test_warnings") {
     41   cflags = [
     42     "-Wno-unused-parameter",
     43   ]
     44 }
     45 
     46 # Debug mode build.
     47 config("debug") {
     48   defines = [ "_DEBUG" ]
     49 }
     50 
     51 # Release mode build.
     52 config("release") {
     53   defines = [ "NDEBUG" ]
     54 }
     55 
     56 # Disable optimisations.
     57 config("no_optimize") {
     58   cflags = [ "-O0" ]
     59 }
     60 
     61 # Optimise for time performance.
     62 config("optimize") {
     63   cflags = [ "-O2" ]
     64 }
     65 
     66 # Optimise for size.
     67 config("optimize_size") {
     68   cflags = [ "-Os" ]
     69 
     70   if (current_os == "mac" || current_os == "ios") {
     71     ldflags = [
     72       "-Wl,-dead_strip",  # Mac equivalent of --gc-sections
     73       "-Wl,-S",  # Strip debug symbols
     74       "-Wl,-x",  # Strip local symbols
     75     ]
     76   } else {
     77     # OpenBSD / Linux / etc.
     78     cflags += [
     79       "-ffunction-sections",
     80       "-fdata-sections",
     81     ]
     82     ldflags = [
     83       "-Wl,--gc-sections",
     84       "-s",
     85     ]
     86   }
     87 }
     88 
     89 # Enable link-time-optimisation.
     90 config("lto") {
     91   cflags = [ "-flto" ]
     92   ldflags = [ "-flto" ]
     93 }
     94 
     95 # Disable exceptions.
     96 config("no_exceptions") {
     97   cflags = [ "-fno-exceptions" ]
     98   ldflags = [ "-fno-exceptions" ]
     99 }
    100 
    101 # Disable runttime type information.
    102 config("no_rtti") {
    103   cflags = [ "-fno-rtti" ]
    104   ldflags = [ "-fno-rtti" ]
    105 }
    106 
    107 # Regular build with symbols.
    108 config("symbols") {
    109   cflags = [ "-g2" ]
    110 }
    111 
    112 # Minimal symbols, typically just enough for backtraces.
    113 config("min_symbols") {
    114   cflags = [ "-g1" ]
    115 }
    116 
    117 # No symbols.
    118 config("no_symbols") {
    119   cflags = [ "-g0" ]
    120 }
    121 
    122 # Address Sanitizer
    123 config("asan") {
    124   cflags = [ "-fsanitize=address" ]
    125   ldflags = [ "-fsanitize=address" ]
    126 }