Extra space in CFLAGS for libffi includes

Compiling with system libffi include file in a non-standard location fails due to a extra space in configure.ac.

Gentoo has the following "fix" in its ebuild:

sed -e 's@LIBFFI_CFLAGS="-I $withval"@LIBFFI_CFLAGS="-I$withval"@' \
    -i "${S}/configure.ac" \
  || die "Could not remove space after -I from LIBFFI_CFLAGS in configure.ac and configure"

I attached a patch.

Trac metadata

Trac field	Value
Version	7.7
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Build System
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Extra space in CFLAGS for libffi includes