autoconf: [PR7874] Add --disable-pthreads to suppress detecting pthreads on certain hosts.

This would be needed to build pthread*.dll-free distribution on recent MinGW-MSYS distros.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122621 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 6 deletions

diff --git a/configure b/configure
index be9fd70c07..ac2488928e 100755
--- a/configure
+++ b/configure
@@ -691,6 +691,7 @@ TARGET_HAS_JIT
 ENABLE_DOCS
 ENABLE_DOXYGEN
 ENABLE_THREADS
+ENABLE_PTHREADS
 ENABLE_PIC
 ENABLE_SHARED
 ENABLE_TIMESTAMPS
@@ -1415,6 +1416,7 @@ Optional Features:
   --enable-docs           Build documents (default is YES)
   --enable-doxygen        Build doxygen documentation (default is NO)
   --enable-threads        Use threads if available (default is YES)
+  --enable-pthreads       Use pthreads if available (default is YES)
   --enable-pic            Build LLVM with Position Independent Code (default
                           is YES)
   --enable-shared         Build a shared library and link tools against it
@@ -4935,6 +4937,25 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+# Check whether --enable-pthreads was given.
+if test "${enable_pthreads+set}" = set; then
+  enableval=$enable_pthreads;
+else
+  enableval=default
+fi
+
+case "$enableval" in
+  yes) ENABLE_PTHREADS=1
+ ;;
+  no)  ENABLE_PTHREADS=0
+ ;;
+  default) ENABLE_PTHREADS=1
+ ;;
+  *) { { echo "$as_me:$LINENO: error: Invalid setting for --enable-pthreads. Use \"yes\" or \"no\"" >&5
+echo "$as_me: error: Invalid setting for --enable-pthreads. Use \"yes\" or \"no\"" >&2;}
+   { (exit 1); exit 1; }; } ;;
+esac
+
 # Check whether --enable-pic was given.
 if test "${enable_pic+set}" = set; then
   enableval=$enable_pic;
@@ -11518,7 +11539,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 11521 "configure"
+#line 11542 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13994,7 +14015,7 @@ _ACEOF
 fi
 
 
-if test "$ENABLE_THREADS" -eq 1 ; then
+if test "$ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
 
 { echo "$as_me:$LINENO: checking for pthread_mutex_init in -lpthread" >&5
 echo $ECHO_N "checking for pthread_mutex_init in -lpthread... $ECHO_C" >&6; }
@@ -16897,7 +16918,7 @@ fi
 
 done
 
-if test "$ENABLE_THREADS" -eq 1 ; then
+if test "$ENABLE_THREADS" -eq 1 && test "$ENABLE_PTHREADS" -eq 1 ; then
 
 for ac_header in pthread.h
 do
@@ -21788,6 +21809,7 @@ TARGET_HAS_JIT!$TARGET_HAS_JIT$ac_delim
 ENABLE_DOCS!$ENABLE_DOCS$ac_delim
 ENABLE_DOXYGEN!$ENABLE_DOXYGEN$ac_delim
 ENABLE_THREADS!$ENABLE_THREADS$ac_delim
+ENABLE_PTHREADS!$ENABLE_PTHREADS$ac_delim
 ENABLE_PIC!$ENABLE_PIC$ac_delim
 ENABLE_SHARED!$ENABLE_SHARED$ac_delim
 ENABLE_TIMESTAMPS!$ENABLE_TIMESTAMPS$ac_delim
@@ -21795,7 +21817,6 @@ TARGETS_TO_BUILD!$TARGETS_TO_BUILD$ac_delim
 LLVM_ENUM_TARGETS!$LLVM_ENUM_TARGETS$ac_delim
 LLVM_ENUM_ASM_PRINTERS!$LLVM_ENUM_ASM_PRINTERS$ac_delim
 LLVM_ENUM_ASM_PARSERS!$LLVM_ENUM_ASM_PARSERS$ac_delim
-LLVM_ENUM_DISASSEMBLERS!$LLVM_ENUM_DISASSEMBLERS$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -21837,6 +21858,7 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+LLVM_ENUM_DISASSEMBLERS!$LLVM_ENUM_DISASSEMBLERS$ac_delim
 ENABLE_CBE_PRINTF_A!$ENABLE_CBE_PRINTF_A$ac_delim
 CLANGPATH!$CLANGPATH$ac_delim
 CLANGXXPATH!$CLANGXXPATH$ac_delim
@@ -21933,7 +21955,6 @@ BINDINGS_TO_BUILD!$BINDINGS_TO_BUILD$ac_delim
 ALL_BINDINGS!$ALL_BINDINGS$ac_delim
 OCAML_LIBDIR!$OCAML_LIBDIR$ac_delim
 ENABLE_VISIBILITY_INLINES_HIDDEN!$ENABLE_VISIBILITY_INLINES_HIDDEN$ac_delim
-RPATH!$RPATH$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -21975,12 +21996,13 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+RPATH!$RPATH$ac_delim
 RDYNAMIC!$RDYNAMIC$ac_delim
 LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 3; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 4; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5