diff options
Diffstat (limited to 'src/engine/SCons/Conftest.py')
| -rw-r--r-- | src/engine/SCons/Conftest.py | 49 |
1 files changed, 31 insertions, 18 deletions
diff --git a/src/engine/SCons/Conftest.py b/src/engine/SCons/Conftest.py index 4d178bd8..ddb1a992 100644 --- a/src/engine/SCons/Conftest.py +++ b/src/engine/SCons/Conftest.py @@ -319,7 +319,7 @@ int main() { return ret -def CheckLib(context, libs, func_name, header = None, +def CheckLib(context, libs, func_name = None, header = None, extra_libs = None, call = None, language = None, autoadd = 1): """ Configure check for a C or C++ libraries "libs". Searches through @@ -333,13 +333,15 @@ def CheckLib(context, libs, func_name, header = None, depends on. Optional "call" replaces the call to "func_name" in the test code. It must consist of complete C statements, including a trailing ";". - There must either be a "func_name" or a "call" argument (or both). + Both "func_name" and "call" arguments are optional, and in that case, just + linking against the libs is tested. "language" should be "C" or "C++" and is used to select the compiler. Default is "C". Note that this uses the current value of compiler and linker flags, make sure $CFLAGS, $CPPFLAGS and $LIBS are set correctly. Returns an empty string for success, an error message for failure. """ + from SCons.Debug import Trace # Include "confdefs.h" first, so that the header can use HAVE_HEADER_H. if context.headerfilename: includetext = '#include "%s"' % context.headerfilename @@ -353,32 +355,36 @@ def CheckLib(context, libs, func_name, header = None, %s""" % (includetext, header) # Add a function declaration if needed. - if func_name and func_name != "main" and not header: - text = text + """ + if func_name and func_name != "main": + if not header: + text = text + """ #ifdef __cplusplus extern "C" #endif char %s(); """ % func_name - # The actual test code. - if not call: - call = "%s();" % func_name + # The actual test code. + if not call: + call = "%s();" % func_name + + # if no function to test, leave main() blank text = text + """ int main() { %s return 0; } -""" % call - - i = string.find(call, "\n") - if i > 0: - calltext = call[:i] + ".." - elif call[-1] == ';': - calltext = call[:-1] - else: - calltext = call +""" % (call or "") + + if call: + i = string.find(call, "\n") + if i > 0: + calltext = call[:i] + ".." + elif call[-1] == ';': + calltext = call[:-1] + else: + calltext = call for lib_name in libs: @@ -387,8 +393,15 @@ return 0; context.Display("Cannot check for library %s: %s\n" % (lib_name, msg)) return msg - context.Display("Checking for %s in %s library %s... " - % (calltext, lang, lib_name)) + # if a function was specified to run in main(), say it + if call: + context.Display("Checking for %s in %s library %s... " + % (calltext, lang, lib_name)) + # otherwise, just say the name of library and language + else: + context.Display("Checking for %s library %s... " + % (lang, lib_name)) + if lib_name: l = [ lib_name ] if extra_libs: |