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Deprecate in-source autotools builds

Browse Source 
This is a followup from:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20150323/268067.html

Upgrade instructions:
  $ mv llvm/include/llvm/Config/config.h ./config.h.BACKUP
  # copy the configure line from line 7 of llvm/config.log
  # (for example: `$ ./configure --no-create --no-recursion`)
  $ mkdir build
  $ cd build
  # run the configure line, but this time with '../llvm' at the beginning:
  $ ../llvm/configure --no-create --no-recursion

These warnings will soon be turned into hard errors after a week.  Speak up now
if this is going to be a problem for you.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236399 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jonathan Roelofs 2015-05-04 02:04:54 +00:00
parent 82b7c1b25b
commit 7dda4c92e4
3 changed files with 50 additions and 0 deletions
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16
Makefile.config.in
View File

@ -58,6 +58,22 @@ LLVM_OBJ_ROOT := $(call realpath, @abs_top_builddir@)
PROJ_SRC_ROOT := $(LLVM_SRC_ROOT)
PROJ_SRC_DIR := $(LLVM_SRC_ROOT)$(patsubst $(PROJ_OBJ_ROOT)%,%,$(PROJ_OBJ_DIR))
# FIXME: This is temporary during the grace period where in-source builds are
# deprecated. Convert to a hard error when that period is up.
#
# See: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20150323/268067.html
ifeq ($(LLVM_SRC_ROOT), $(LLVM_OBJ_ROOT))
$(warning ######################################################################################)
$(warning # #)
$(warning # WARNING #)
$(warning # #)
$(warning # In-source builds are deprecated. #)
$(warning # #)
$(warning # Please configure from a separate build directory! #)
$(warning # #)
$(warning ######################################################################################)
endif
ifneq ($(CLANG_SRC_ROOT),)
CLANG_SRC_ROOT:= $(call realpath, $(CLANG_SRC_ROOT))
PROJ_SRC_DIR := $(patsubst $(LLVM_SRC_ROOT)/tools/clang%,$(CLANG_SRC_ROOT)%,$(PROJ_SRC_DIR))

13
autoconf/configure.ac
View File

@ -73,6 +73,19 @@ if test ${srcdir} != "." ; then
fi
fi
dnl Quit if it is an in-source build
if test ${srcdir} == "." ; then
AC_MSG_WARN([**************************************************************************************])
AC_MSG_WARN([* *])
AC_MSG_WARN([* WARNING *])
AC_MSG_WARN([* *])
AC_MSG_WARN([* In-source builds are deprecated. *])
AC_MSG_WARN([* *])
AC_MSG_WARN([* Please configure from a separate build directory! *])
AC_MSG_WARN([* *])
AC_MSG_WARN([**************************************************************************************])
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=}

21
configure vendored
View File

@ -2030,6 +2030,27 @@ echo "$as_me: error: Already configured in ${srcdir}" >&2;}
fi
fi
if test ${srcdir} == "." ; then
{ echo "$as_me:$LINENO: WARNING: **************************************************************************************" >&5
echo "$as_me: WARNING: **************************************************************************************" >&2;}
{ echo "$as_me:$LINENO: WARNING: * *" >&5
echo "$as_me: WARNING: * *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * WARNING *" >&5
echo "$as_me: WARNING: * WARNING *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * *" >&5
echo "$as_me: WARNING: * *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * In-source builds are deprecated. *" >&5
echo "$as_me: WARNING: * In-source builds are deprecated. *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * *" >&5
echo "$as_me: WARNING: * *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * Please configure from a separate build directory! *" >&5
echo "$as_me: WARNING: * Please configure from a separate build directory! *" >&2;}
{ echo "$as_me:$LINENO: WARNING: * *" >&5
echo "$as_me: WARNING: * *" >&2;}
{ echo "$as_me:$LINENO: WARNING: **************************************************************************************" >&5
echo "$as_me: WARNING: **************************************************************************************" >&2;}
fi
: ${CFLAGS=}
: ${CXXFLAGS=}