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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_ROOT := $(LLVM_SRC_ROOT)
PROJ_SRC_DIR := $(LLVM_SRC_ROOT)$(patsubst $(PROJ_OBJ_ROOT)%,%,$(PROJ_OBJ_DIR)) 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),) ifneq ($(CLANG_SRC_ROOT),)
CLANG_SRC_ROOT:= $(call realpath, $(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)) 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
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 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). dnl instead of the autoconf default (for example, '-g -O2' for CC=gcc).
: ${CFLAGS=} : ${CFLAGS=}

21
configure vendored
View File

@ -2030,6 +2030,27 @@ echo "$as_me: error: Already configured in ${srcdir}" >&2;}
fi fi
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=} : ${CFLAGS=}
: ${CXXFLAGS=} : ${CXXFLAGS=}