maint: add lib/gmp.h to .gitignore

* .gitignore: Add generated file.  Tested with:
./configure --without-libgmp && make && git status

diff --git a/.gitignore b/.gitignore
index 5083abbbc5a605d58390c98b15416e121de4e46e..56b7c323a3d2f11d1308bc2c0945ff1c02d10b80 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -63,6 +63,7 @@
 /lib/getopt-cdefs.h
 /lib/getopt.h
 /lib/glthread
+/lib/gmp.h
 /lib/iconv.h
 /lib/iconv_open-aix.h
 /lib/iconv_open-hpux.h