More changes for new gpg-error-config.
* configure.ac: Change generating gpg-error-config. (GPG_ERROR_CONFIG_ISUBDIRAFTER): Remove. (GPG_ERROR_CONFIG_CFLAGS): Put -idirafter here. * src/Makefile.am (pkgconfig_DATA): Add. (EXTRA_DIST): Add gpg-error-config-head.in, pkgconf-funcs.sh, gpg-error-config-main.sh, gpg-error.pc.in. * src/gpg-error-config-head.in: New. * src/gpg-error-config-main.sh: Rename from src/gpg-error-config.in. * src/gpg-error.pc.in (isubdirafter): Remove.
- Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>