autoconf: More informative errors when pkg-config macros undefined

Added a check that PKG_PROG_PKG_CONFIG is defined before calling it so
the user can see a proper error. Without it, the generated configure
script will just pass on to the next statement and bomb with a strange
shell syntax error.
This commit is contained in:
Dan Nicholson 2007-12-12 08:48:30 -08:00
parent aab38cfc43
commit 41b00707e2

View file

@ -28,6 +28,12 @@ AC_PROG_CXX
AC_PATH_PROG(MAKE, make)
AC_PATH_PROG(MKDEP, makedepend)
AC_PATH_PROG(SED, sed)
dnl Make sure the pkg-config macros are defined
m4_ifdef([PKG_PROG_PKG_CONFIG],,[
AC_MSG_ERROR([The pkg-config autoconf macros are not defined.
Did you run 'make configure'?])]
)
PKG_PROG_PKG_CONFIG()
dnl LIB_DIR - library basename