Bug#911655: AX_PATH_BDB_NO_OPTIONS makes broken assumptions for cross compilation
Control: affects -1 - src:moc * Helmut Grohne [2018-10-23 08:19 +0200]: > Package: autoconf-archive > Version: 20170928-2 > Tags: patch upstream > User: helm...@debian.org > Usertags: rebootstrap > Control: affects -1 + src:moc > > The AX_PATH_BDB_NO_OPTIONS is broken for cross compilation and that > breaks moc. The macro assumes that $ac_cpp does not emit #line markers. > For native compilation, $ac_cpp will be "cpp" and that assumption is ok. > For cross compilation, it will be "-gcc -E" and that one emits > #line markers. The macro inserts a line > > AX_PATH_BDB_STUFF DB_VERSION_MAJOR,DB_VERSION_MINOR,DB_VERSION_PATCH > > and then tries to parse what comes back from the preprocessor. In the > cross compilation, that line is split up into many lines and the parsing > fails. > > If you do not want #line markers, you must pass -P to $ac_cpp. The > attached patch implements that. Should be fixed by moc 2.6.0~svn-r2994-3. Elimar -- We all know Linux is great... it does infinite loops in 5 seconds. -Linus Torvalds signature.asc Description: PGP signature
Bug#911655: AX_PATH_BDB_NO_OPTIONS makes broken assumptions for cross compilation
Package: autoconf-archive Version: 20170928-2 Tags: patch upstream User: helm...@debian.org Usertags: rebootstrap Control: affects -1 + src:moc The AX_PATH_BDB_NO_OPTIONS is broken for cross compilation and that breaks moc. The macro assumes that $ac_cpp does not emit #line markers. For native compilation, $ac_cpp will be "cpp" and that assumption is ok. For cross compilation, it will be "-gcc -E" and that one emits #line markers. The macro inserts a line AX_PATH_BDB_STUFF DB_VERSION_MAJOR,DB_VERSION_MINOR,DB_VERSION_PATCH and then tries to parse what comes back from the preprocessor. In the cross compilation, that line is split up into many lines and the parsing fails. If you do not want #line markers, you must pass -P to $ac_cpp. The attached patch implements that. Helmut --- autoconf-archive-20170928.orig/m4/ax_path_bdb.m4 +++ autoconf-archive-20170928/m4/ax_path_bdb.m4 @@ -179,7 +179,7 @@ ]]) ],[ # Extract version from preprocessor output. - HEADER_VERSION=`eval "$ac_cpp conftest.$ac_ext" 2> /dev/null \ + HEADER_VERSION=`eval "$ac_cpp -P conftest.$ac_ext" 2> /dev/null \ | grep AX_PATH_BDB_STUFF | sed 's/[[^0-9,]]//g;s/,/./g;1q'` ],[])
