[Bug 33780] New: configure --without-xml --with-dbus fails because of bad AC_REQUIRE logic
wine-bugs at winehq.org
wine-bugs at winehq.org
Mon Jun 10 22:25:18 CDT 2013
http://bugs.winehq.org/show_bug.cgi?id=33780
Bug #: 33780
Summary: configure --without-xml --with-dbus fails because of
bad AC_REQUIRE logic
Product: Wine
Version: 1.6-rc1
Platform: x86-64
OS/Version: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: build-env
AssignedTo: wine-bugs at winehq.org
ReportedBy: tetromino at gentoo.org
Classification: Unclassified
(originally reported at https://bugs.gentoo.org/show_bug.cgi?id=470172)
WINE_PACKAGE_FLAGS is defined in aclocal.m4 as
AC_DEFUN([WINE_PACKAGE_FLAGS],
[AC_REQUIRE([WINE_PATH_PKG_CONFIG])dnl
AC_ARG_VAR([$1]_CFLAGS, [C compiler flags for $2, overriding pkg-config])dnl
...
Now, AC_REQUIRE expands its argument *only on the first occurrence of the
macro*. In other words, WINE_PATH_PKG_CONFIG gets expanded only once - at the
first invocation of WINE_PACKAGE_FLAGS! And that invocation happens to be
inside a shell conditional expression.
The logic in configure is essentially
if test "x$with_xml" != "xno"; then
WINE_PACKAGE_FLAGS(XML2, ...)
fi
if test "x$with_dbus" != "xno"; then
WINE_PACKAGE_FLAGS(DBUS, ...)
fi
which gets expanded to
if test "x$with_xml" != "xno"; then
<check for pkg-config and set PKG_CONFIG>
<check for libxml-2.0.pc using $PKG_CONFIG>
fi
if test "x$with_dbus" != "xno"; then
<check for dbus-1.pc using $PKG_CONFIG>
fi
As a result, ./configure --without-xml --with-dbus always fails:
checking dbus/dbus.h presence... no
checking for dbus/dbus.h... no
configure: error: libdbus development files not found, no dynamic device
support.
This is an error since --with-dbus was requested.
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