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Teach erl_interface configure more pthread support

- Teach lib/erl_interface/configure.in to look for
  pthreads support in libc (where it can be found on QNX)

- A minor tweak such that this configure *fails* if you pass --enable-threads and
  no pthreads support can be found.
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1 parent 55c2b0b commit 3660d23158441075dec8e3c08fb513225ec10210 Per Hedeland committed with psyeugenic Nov 14, 2012
Showing with 51 additions and 7 deletions.
  1. +9 −1 aclocal.m4
  2. +9 −1 erts/aclocal.m4
  3. +9 −1 lib/erl_interface/aclocal.m4
  4. +6 −2 lib/erl_interface/configure.in
  5. +9 −1 lib/odbc/aclocal.m4
  6. +9 −1 lib/wx/aclocal.m4
View
10 aclocal.m4
@@ -740,11 +740,16 @@ dnl Try to find POSIX threads
dnl The usual pthread lib...
AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread")
-dnl FreeBSD has pthreads in special c library, c_r...
+dnl Very old versions of FreeBSD have pthreads in special c library, c_r...
if test "x$THR_LIBS" = "x"; then
AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r")
fi
+dnl QNX has pthreads in standard C library
+ if test "x$THR_LIBS" = "x"; then
+ AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed")
+ fi
+
dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" = "x"; then
AC_MSG_CHECKING([if the '-pthread' switch can be used])
@@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" != "x"; then
THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
THR_LIB_NAME=pthread
+ if test "x$THR_LIBS" = "xnone_needed"; then
+ THR_LIBS=
+ fi
case $host_os in
solaris*)
THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;
View
10 erts/aclocal.m4
@@ -740,11 +740,16 @@ dnl Try to find POSIX threads
dnl The usual pthread lib...
AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread")
-dnl FreeBSD has pthreads in special c library, c_r...
+dnl Very old versions of FreeBSD have pthreads in special c library, c_r...
if test "x$THR_LIBS" = "x"; then
AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r")
fi
+dnl QNX has pthreads in standard C library
+ if test "x$THR_LIBS" = "x"; then
+ AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed")
+ fi
+
dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" = "x"; then
AC_MSG_CHECKING([if the '-pthread' switch can be used])
@@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" != "x"; then
THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
THR_LIB_NAME=pthread
+ if test "x$THR_LIBS" = "xnone_needed"; then
+ THR_LIBS=
+ fi
case $host_os in
solaris*)
THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;
View
10 lib/erl_interface/aclocal.m4
@@ -740,11 +740,16 @@ dnl Try to find POSIX threads
dnl The usual pthread lib...
AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread")
-dnl FreeBSD has pthreads in special c library, c_r...
+dnl Very old versions of FreeBSD have pthreads in special c library, c_r...
if test "x$THR_LIBS" = "x"; then
AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r")
fi
+dnl QNX has pthreads in standard C library
+ if test "x$THR_LIBS" = "x"; then
+ AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed")
+ fi
+
dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" = "x"; then
AC_MSG_CHECKING([if the '-pthread' switch can be used])
@@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" != "x"; then
THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
THR_LIB_NAME=pthread
+ if test "x$THR_LIBS" = "xnone_needed"; then
+ THR_LIBS=
+ fi
case $host_os in
solaris*)
THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;
View
8 lib/erl_interface/configure.in
@@ -79,7 +79,7 @@ AC_ARG_ENABLE(threads,
no) threads_disabled=yes ;;
*) threads_disabled=no ;;
esac ],
-[ threads_disabled=no ])
+[ threads_disabled=maybe ])
dnl ----------------------------------------------------------------------
dnl Checks for programs
@@ -237,12 +237,16 @@ AC_SUBST(THR_DEFS)
AC_SUBST(EI_THREADS)
case "$threads_disabled" in
- no)
+ no|maybe)
LM_CHECK_THR_LIB
case "$THR_LIB_NAME" in
"")
EI_THREADS="false"
+ # Fail if --enable-threads given and no threads found
+ if test "x$threads_disabled" = "xno"; then
+ AC_MSG_ERROR(No threads support found)
+ fi
;;
win32_threads)
EI_THREADS="true"
View
10 lib/odbc/aclocal.m4
@@ -740,11 +740,16 @@ dnl Try to find POSIX threads
dnl The usual pthread lib...
AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread")
-dnl FreeBSD has pthreads in special c library, c_r...
+dnl Very old versions of FreeBSD have pthreads in special c library, c_r...
if test "x$THR_LIBS" = "x"; then
AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r")
fi
+dnl QNX has pthreads in standard C library
+ if test "x$THR_LIBS" = "x"; then
+ AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed")
+ fi
+
dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" = "x"; then
AC_MSG_CHECKING([if the '-pthread' switch can be used])
@@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" != "x"; then
THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
THR_LIB_NAME=pthread
+ if test "x$THR_LIBS" = "xnone_needed"; then
+ THR_LIBS=
+ fi
case $host_os in
solaris*)
THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;
View
10 lib/wx/aclocal.m4
@@ -740,11 +740,16 @@ dnl Try to find POSIX threads
dnl The usual pthread lib...
AC_CHECK_LIB(pthread, pthread_create, THR_LIBS="-lpthread")
-dnl FreeBSD has pthreads in special c library, c_r...
+dnl Very old versions of FreeBSD have pthreads in special c library, c_r...
if test "x$THR_LIBS" = "x"; then
AC_CHECK_LIB(c_r, pthread_create, THR_LIBS="-lc_r")
fi
+dnl QNX has pthreads in standard C library
+ if test "x$THR_LIBS" = "x"; then
+ AC_CHECK_FUNC(pthread_create, THR_LIBS="none_needed")
+ fi
+
dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" = "x"; then
AC_MSG_CHECKING([if the '-pthread' switch can be used])
@@ -765,6 +770,9 @@ dnl On ofs1 the '-pthread' switch should be used
if test "x$THR_LIBS" != "x"; then
THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
THR_LIB_NAME=pthread
+ if test "x$THR_LIBS" = "xnone_needed"; then
+ THR_LIBS=
+ fi
case $host_os in
solaris*)
THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;

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