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Discourage in-source autoconf builds (as we already do for the cmake build)

Browse Source 
http://reviews.llvm.org/D7961


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230812 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jonathan Roelofs 2015-02-27 23:35:47 +00:00
parent 88bbdc790e
commit dcd2094389
2 changed files with 11 additions and 0 deletions

5
autoconf/configure.ac

@ -73,6 +73,11 @@ if test ${srcdir} != "." ; then
fi
fi
dnl Quit if it is an in-source build
if test ${srcdir} == "." ; then
AC_MSG_ERROR([In-source builds are discouraged. Configure from a separate build directory.])
fi
dnl Default to empty (i.e. assigning the null string to) CFLAGS and CXXFLAGS,
dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
: ${CFLAGS=}

6
configure vendored

@ -1999,6 +1999,12 @@ echo "$as_me: error: Already configured in ${srcdir}" >&2;}
fi
fi
if test ${srcdir} == "." ; then
{ { echo "$as_me:$LINENO: error: In-source builds are discouraged. Configure from a separate build directory." >&5
echo "$as_me: error: In-source builds are discouraged. Configure from a separate build directory." >&2;}
{ (exit 1); exit 1; }; }
fi
: ${CFLAGS=}
: ${CXXFLAGS=}