diff options
-rw-r--r-- | ChangeLog | 10 | ||||
-rw-r--r-- | lib/mkmf.rb | 65 |
2 files changed, 75 insertions, 0 deletions
@@ -1,3 +1,13 @@ +Sun Sep 19 22:08:39 2010 Yuki Sonoda (Yugui) <yugui@yugui.jp> + + * lib/mkmf.rb (try_link): rdoc + (try_compile): ditto + (try_cpp): ditto + (try_func): ditto + (try_var): ditto + (try_run): ditto + (egrep_cpp): ditto + Sun Sep 19 20:43:33 2010 Yuki Sonoda (Yugui) <yugui@yugui.jp> * configure.in (--disable-install-doc): disables capi too, in addition diff --git a/lib/mkmf.rb b/lib/mkmf.rb index e0b665a2f2..0af433a40f 100644 --- a/lib/mkmf.rb +++ b/lib/mkmf.rb @@ -418,6 +418,7 @@ def libpathflag(libpath=$DEFLIBPATH|$LIBPATH) }.join end +# :nodoc: def try_link0(src, opt="", &b) cmd = link_command("", opt) if $universal @@ -435,18 +436,46 @@ def try_link0(src, opt="", &b) end end +# Returns whether or not the +src+ can be compiled as a C source and +# linked with its depending libraries successfully. +# +opt+ is passed to the linker as options. Note that +$CFLAGS+ and +$LDFLAGS+ +# are also passed to the linker. +# +# If a block given, it is called with the source before compilation. You can +# modify the source in the block. +# +# [+src+] a String which contains a C source +# [+opt+] a String which contains linker options def try_link(src, opt="", &b) try_link0(src, opt, &b) ensure rm_f "conftest*", "c0x32*" end +# Returns whether or not the +src+ can be compiled as a C source. +# +opt+ is passed to the C compiler as options. Note that +$CFLAGS+ is +# also passed to the compiler. +# +# If a block given, it is called with the source before compilation. You can +# modify the source in the block. +# +# [+src+] a String which contains a C source +# [+opt+] a String which contains compiler options def try_compile(src, opt="", &b) try_do(src, cc_command(opt), &b) ensure rm_f "conftest*" end +# Returns whether or not the +src+ can be preprocessed with the C preprocessor. +# +opt+ is passed to the preprocessor as options. Note that +$CFLAGS+ is +# also passed to the preprocessor. +# +# If a block given, it is called with the source before preprocessing. You can +# modify the source in the block. +# +# [+src+] a String which contains a C source +# [+opt+] a String which contains preprocessor options def try_cpp(src, opt="", &b) try_do(src, cpp_command(CPPOUTFILE, opt), &b) ensure @@ -546,6 +575,12 @@ int main() {printf("%d\\n", conftest_const); return 0;} nil end +# You should use +have_func+ rather than +try_func+. +# +# [+func+] a String which contains a symbol name +# [+libs+] a String which contains library names. +# [+headers+] a String or an Array of strings which contains +# names of header files. def try_func(func, libs, headers = nil, &b) headers = cpp_include(headers) try_link(<<"SRC", libs, &b) or @@ -562,6 +597,7 @@ int t() { #{func}(); return 0; } SRC end +# You should use +have_var+ rather than +try_var+. def try_var(var, headers = nil, &b) headers = cpp_include(headers) try_compile(<<"SRC", &b) @@ -572,6 +608,19 @@ int t() { const volatile void *volatile p; p = &(&#{var})[0]; return 0; } SRC end +# Returns whether or not the +src+ can be preprocessed with the C preprocessor and +# matches with +pat+. +# +# If a block given, it is called with the source before compilation. You can +# modify the source in the block. +# +# [+pat+] a Regexp or a String +# [+src+] a String which contains a C source +# [+opt+] a String which contains preprocessor options +# +# Note: +# When pat is a Regexp the matching will be checked in process, +# otherwise egrep(1) will be invoked to check it. def egrep_cpp(pat, src, opt = "", &b) src = create_tmpsrc(src, &b) xpopen(cpp_command('', opt)) do |f| @@ -610,6 +659,22 @@ def macro_defined?(macro, src, opt = "", &b) SRC end +# Returns whether or not +# * the +src+ can be compiled as a C source, +# * the result object can be linked with its depending libraries successfully, +# * the linked file can be invoked as an executable +# * and the executable exits successfully +# +opt+ is passed to the linker as options. Note that +$CFLAGS+ and +$LDFLAGS+ +# are also passed to the linker. +# +# If a block given, it is called with the source before compilation. You can +# modify the source in the block. +# +# [+src+] a String which contains a C source +# [+opt+] a String which contains linker options +# +# @return true when the executable exits successfully, false when it fails, or +# nil when preprocessing, compilation or link fails. def try_run(src, opt = "", &b) if try_link0(src, opt, &b) xsystem("./conftest") |