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author | Niklas Haas <git@haasn.dev> | 2021-05-05 18:33:15 +0200 |
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committer | Niklas Haas <github-daiK1o@haasn.dev> | 2021-11-03 14:09:27 +0100 |
commit | 210767169191e19c70f9c7b63528b0d629ddbcfa (patch) | |
tree | 7f5cd70207722e0ad1ca2ec5ada7276b729fe8fe /waftools | |
parent | edb0caa4415b47bb1b60a66ad2f3d1bdb42cdb25 (diff) | |
download | mpv-210767169191e19c70f9c7b63528b0d629ddbcfa.tar.bz2 mpv-210767169191e19c70f9c7b63528b0d629ddbcfa.tar.xz |
build: add check_preprocessor
This can be used to do things like query the values of preprocessor
defines like version macros, among other potential uses.
Diffstat (limited to 'waftools')
-rw-r--r-- | waftools/checks/generic.py | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/waftools/checks/generic.py b/waftools/checks/generic.py index 4e27f5114a..114f4522b7 100644 --- a/waftools/checks/generic.py +++ b/waftools/checks/generic.py @@ -9,7 +9,7 @@ __all__ = [ "check_pkg_config_cflags", "check_cc", "check_statement", "check_libs", "check_headers", "compose_checks", "any_check", "check_true", "any_version", "load_fragment", "check_stub", "check_ctx_vars", "check_program", - "check_pkg_config_datadir", "check_macos_sdk"] + "check_pkg_config_datadir", "check_macos_sdk", "check_preprocessor"] any_version = None @@ -47,6 +47,23 @@ def check_libs(libs, function): return False return fn +def check_preprocessor(header, expression, **kw_ext): + def fn(ctx, dependency_identifier, **kw): + headers = header + if not isinstance(headers, list): + headers = [header] + hs = "\n".join(["#include <{0}>".format(h) for h in headers]) + fragment = ("{0}\n" + "#if !({1})\n#error\n#endif\n" + "int main(int argc, char **argv)\n" + "{{ return 0; }}").format(hs, expression) + opts = __merge_options__(dependency_identifier, + {'fragment':fragment}, + __define_options__(dependency_identifier), + kw_ext, kw) + return ctx.check_cc(**_filter_cc_arguments(ctx, opts)) + return fn + def check_statement(header, statement, **kw_ext): def fn(ctx, dependency_identifier, **kw): headers = header |