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| author | Dan Nicholson <dbn.lists@gmail.com> | 2017-03-20 06:48:28 -0500 |
|---|---|---|
| committer | Dan Nicholson <dbn.lists@gmail.com> | 2017-03-20 06:51:27 -0500 |
| commit | 325ddf2f4b19a9084dedd3d458f7d02f5b854dec (patch) | |
| tree | f3690cf88c08fe68fa8714053ded4f92a23f35ba | |
| parent | 99ef6fd55a5735bd800c9e5ed0393eac9047362d (diff) | |
man: Document PKG_PROG_PKG_CONFIG conditional issue there
The issue of PKG_PROG_PKG_CONFIG being run first from a conditional
affects more than PKG_CHECK_MODULES and PKG_CHECK_EXISTS since
PKG_PROG_PKG_CONFIG is AC_REQUIRE'd from many other macros. Describe the
issue completely in the PKG_PROG_PKG_CONFIG section.
| -rw-r--r-- | pkg-config.1 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/pkg-config.1 b/pkg-config.1 index e4bc757..c8cec84 100644 --- a/pkg-config.1 +++ b/pkg-config.1 @@ -468,7 +468,15 @@ macro will be available. Defines the PKG_CONFIG variable to the best pkg-config available, useful if you need pkg-config but don't want to use PKG_CHECK_MODULES. -.\" + +If the first call to PKG_PROG_PKG_CONFIG is conditional, then it will +not work correctly in all cases. Since many of the other macros such as +PKG_CHECK_MODULES require PKG_PROG_PKG_CONFIG to know which pkg-config +program to run, PKG_PROG_PKG_CONFIG may be run for the first time from a +conditional from one of these macros. Therefore, if any of the +pkg-config macros will be used under a conditional, it's best to run +PKG_PROG_PKG_CONFIG before any of the other macros are used. + .TP .I "PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES [,ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]])" Enables static linking through --static prior to calling |