Fix search name for gflags's .pc file

Summary:
gflags's pkg-config file is installed by default under the name gflags.pc; however, folly has been searching for it under the name libgflags.pc.

Several package managers (Homebrew, apt) install the .pc file under its default upstream name; as such it seems appropriate for folly to look for it under that name, too.

refs Homebrew/homebrew-core#7977.
Closes https://github.com/facebook/folly/pull/531

Reviewed By: yfeldblum

Differential Revision: D4348089

Pulled By: Orvid

fbshipit-source-id: 6adec290ec88b5d3f66103cf8e5094e99f2512ad

diff --git a/folly/configure.ac b/folly/configure.ac
index 90771eabb4e8f53a3a360e8821d1302fcc04ea6e..6da4404843540312b23287141254da166f3c8209 100644 (file)
--- a/folly/configure.ac
+++ b/folly/configure.ac
@@ -102,9 +102,9 @@ AC_CACHE_CHECK(
 )
 
 if test "$folly_cv_prog_cc_gflags" != "yes"; then
-  AC_MSG_ERROR(["libgflags invalid, see config.log for details"])
+  AC_MSG_ERROR(["gflags invalid, see config.log for details"])
 fi
-FB_CHECK_PKG_CONFIG([GFLAGS], [libgflags])
+FB_CHECK_PKG_CONFIG([GFLAGS], [gflags])
 
 AC_HAVE_LIBRARY([glog],[],[AC_MSG_ERROR(
                 [Please install google-glog library])])