Merge branch 'rickard/configure-help/OTP-8859' into dev

* rickard/configure-help/OTP-8859:
  Cleanup configure help texts

Conflicts:
	erts/aclocal.m4

3 files changed, 107 insertions, 77 deletions

diff --git a/configure.in b/configure.in
index d0879c6291..36b33ec399 100644
--- a/configure.in
+++ b/configure.in
@@ -106,7 +106,8 @@ AC_SUBST(CROSS_COMPILING)
 
 
 AC_ARG_ENABLE(bootstrap-only,
-[  --enable-bootstrap-only enable bootstrap only configuration],
+AS_HELP_STRING([--enable-bootstrap-only],
+               [enable bootstrap only configuration]),
 [ if test "X$enableval" = "Xyes"; then
      BOOTSTRAP_ONLY=yes
   else
@@ -192,53 +193,62 @@ AC_MSG_RESULT([$OTP_REL])
 AC_SUBST(OTP_REL)
 
 AC_ARG_ENABLE(threads,
-[  --enable-threads        enable async thread support
-  --disable-threads       disable async thread support])
+AS_HELP_STRING([--enable-threads], [enable async thread support])
+AS_HELP_STRING([--disable-threads], [disable async thread support]))
 
 AC_ARG_ENABLE(halfword-emulator,
-[  --enable-halfword-emulator        enable halfword emulator (only for 64bit builds)
-  --disable-halfword-emulator        disable halfword emulator (only for 64bit builds)])
+AS_HELP_STRING([--enable-halfword-emulator],
+               [enable halfword emulator (only for 64bit builds)]))
 
 AC_ARG_ENABLE(smp-support,
-[  --enable-smp-support    enable smp support
-  --disable-smp-support   disable smp support])
+AS_HELP_STRING([--enable-smp-support], [enable smp support])
+AS_HELP_STRING([--disable-smp-support], [disable smp support]))
 
 AC_ARG_WITH(termcap,
-[  --with-termcap          use termcap (default)
-  --without-termcap       do not use any termcap libraries (ncurses,curses,termcap,termlib)])
+AS_HELP_STRING([--with-termcap], [use termcap (default)])
+AS_HELP_STRING([--without-termcap],
+               [do not use any termcap libraries (ncurses,curses,termcap,termlib)]))
 
 AC_ARG_ENABLE(kernel-poll,
-[  --enable-kernel-poll    enable kernel poll support])
+AS_HELP_STRING([--enable-kernel-poll], [enable kernel poll support])
+AS_HELP_STRING([--disable-kernel-poll], [disable kernel poll support]))
+
+AC_ARG_ENABLE(sctp,
+AS_HELP_STRING([--enable-sctp], [enable sctp support])
+AS_HELP_STRING([--disable-sctp], [disable sctp support]))
 
 AC_ARG_ENABLE(hipe,
-[  --enable-hipe           enable hipe support
-  --disable-hipe          disable hipe support])
-			
+AS_HELP_STRING([--enable-hipe], [enable hipe support])
+AS_HELP_STRING([--disable-hipe], [disable hipe support]))
+
+AC_ARG_ENABLE(native-libs,
+AS_HELP_STRING([--enable-native-libs],
+               [compile Erlang libraries to native code]))
+
 AC_ARG_WITH(javac,
-[  --with-javac=JAVAC      specify Java compiler to use
-  --with-javac            use a Java compiler if found (default)
-  --without-javac         don't use any Java compiler])
+AS_HELP_STRING([--with-javac=JAVAC], [specify Java compiler to use])
+AS_HELP_STRING([--with-javac], [use a Java compiler if found (default)])
+AS_HELP_STRING([--without-javac], [don't use any Java compiler]))
 
 AC_ARG_ENABLE(megaco_flex_scanner_lineno,
-[  --enable-megaco-flex-scanner-lineno enable megaco flex scanner lineno
-  --disable-megaco-flex-scanner-lineno disable megaco flex scanner lineno])
+AS_HELP_STRING([--disable-megaco-flex-scanner-lineno],
+               [disable megaco flex scanner lineno]))
 
 AC_ARG_ENABLE(megaco_reentrant_flex_scanner,
-[  --enable-megaco-reentrant-flex-scanner enable reentrans megaco flex scanner
-  --disable-megaco-reentrant-flex-scanner disable reentrans megaco flex scanner])
+AS_HELP_STRING([--disable-megaco-reentrant-flex-scanner],
+               [disable reentrant megaco flex scanner]))
 
 AC_ARG_WITH(ssl,
-[  --with-ssl=PATH         specify location of OpenSSL include and lib
-  --with-ssl              use SSL (default)
-  --without-ssl           don't use SSL])
+AS_HELP_STRING([--with-ssl=PATH], [specify location of OpenSSL include and lib])
+AS_HELP_STRING([--with-ssl], [use SSL (default)])
+AS_HELP_STRING([--without-ssl], [don't use SSL]))
 
 AC_ARG_ENABLE(dynamic-ssl-lib,
-[  --enable-dynamic-ssl-lib        force using dynamic openssl libraries
-  --disable-dynamic-ssl-lib       disable using dynamic openssl libraries])
+AS_HELP_STRING([--disable-dynamic-ssl-lib],
+               [disable using dynamic openssl libraries]))
 
 AC_ARG_ENABLE(shared-zlib,
-[  --enable-shared-zlib        enable using shared zlib library
-  --disable-shared-zlib       disable shared zlib, compile own zlib source (default)])
+AS_HELP_STRING([--enable-shared-zlib], [enable using shared zlib library]))
 
 dnl This functionality has been lost along the way... :(
 dnl It could perhaps be nice to reintroduce some day; therefore,
@@ -256,7 +266,8 @@ dnl   esac ], erl_mandir='$(erlang_libdir)/man')
 dnl AC_SUBST(erl_mandir)
 
 AC_ARG_ENABLE(darwin-universal,
-[  --enable-darwin-universal    build universal binaries on darwin i386],
+AS_HELP_STRING([--enable-darwin-universal],
+               [build universal binaries on darwin i386]),
 [ case "$enableval" in
     no) enable_darwin_universal=no ;;
     *)  enable_darwin_univeral=yes ;;
@@ -265,7 +276,7 @@ AC_ARG_ENABLE(darwin-universal,
 
 
 AC_ARG_ENABLE(darwin-64bit,
-[  --enable-darwin-64bit    build 64bit binaries on darwin],
+AS_HELP_STRING([--enable-darwin-64bit], [build 64bit binaries on darwin]),
 [ case "$enableval" in
     no) enable_darwin_64bit=no ;;
     *)  enable_darwin_64bit=yes ;;
@@ -273,7 +284,8 @@ AC_ARG_ENABLE(darwin-64bit,
 ],enable_darwin_64bit=no)
 
 AC_ARG_ENABLE(m64-build,
-[  --enable-m64-build    build 64bit binaries using the -m64 flag to (g)cc],
+AS_HELP_STRING([--enable-m64-build],
+               [build 64bit binaries using the -m64 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m64_build=no ;;
     *)  enable_m64_build=yes ;;
@@ -281,7 +293,8 @@ AC_ARG_ENABLE(m64-build,
 ],enable_m64_build=no)
 
 AC_ARG_ENABLE(m32-build,
-[  --enable-m32-build    build 32bit binaries using the -m32 flag to (g)cc],
+AS_HELP_STRING([--enable-m32-build],
+               [build 32bit binaries using the -m32 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m32_build=no ;;
     *)
@@ -293,6 +306,14 @@ AC_ARG_ENABLE(m32-build,
   esac
 ],enable_m32_build=no)
 
+AC_ARG_ENABLE(ethread-pre-pentium4-compatibility,
+	      AS_HELP_STRING([--enable-ethread-pre-pentium4-compatibility],
+			     [enable compatibility with x86 processors before pentium 4 (back to 486) in the ethread library]))
+
+AC_ARG_WITH(libatomic_ops,
+	    AS_HELP_STRING([--with-libatomic_ops=PATH],
+			   [specify and prefer usage of libatomic_ops in the ethread library]))
+
 dnl OK, we might have darwin switches off different kinds, lets 
 dnl check it all before continuing.
 TMPSYS=`uname -s`-`uname -m`
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index be620d71f4..443d8622bf 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -1100,7 +1100,7 @@ test "X$disable_native_ethr_impls" = "Xyes" &&
 
 AC_ARG_ENABLE(prefer-gcc-native-ethr-impls,
 	      AS_HELP_STRING([--enable-prefer-gcc-native-ethr-impls],
-			     [enable prefer gcc native ethread implementations]),
+			     [prefer gcc native ethread implementations]),
 [ case "$enableval" in
     yes) enable_prefer_gcc_native_ethr_impls=yes ;;
     *)  enable_prefer_gcc_native_ethr_impls=no ;;
@@ -1111,7 +1111,7 @@ test $enable_prefer_gcc_native_ethr_impls = yes &&
 
 AC_ARG_WITH(libatomic_ops,
 	    AS_HELP_STRING([--with-libatomic_ops=PATH],
-			   [use libatomic_ops with the ethread library]))
+			   [specify and prefer usage of libatomic_ops in the ethread library]))
 
 AC_ARG_ENABLE(ethread-pre-pentium4-compatibility,
 	      AS_HELP_STRING([--enable-ethread-pre-pentium4-compatibility],
diff --git a/erts/configure.in b/erts/configure.in
index c279161a29..6f8d2adb9a 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -110,7 +110,8 @@ ENABLE_ALLOC_TYPE_VARS=
 AC_SUBST(ENABLE_ALLOC_TYPE_VARS)
 
 AC_ARG_ENABLE(bootstrap-only,
-[  --enable-bootstrap-only enable bootstrap only configuration],
+AS_HELP_STRING([--enable-bootstrap-only],
+               [enable bootstrap only configuration]),
 [ if test "X$enableval" = "Xyes"; then
 	# Disable stuff not necessary in a bootstrap only system in order
 	# to speed up things by reducing the amount of stuff needing to be
@@ -126,46 +127,46 @@ AC_ARG_ENABLE(bootstrap-only,
 ])
 
 AC_ARG_ENABLE(threads,
-[  --enable-threads        enable async thread support
-  --disable-threads       disable async thread support],
+AS_HELP_STRING([--enable-threads], [enable async thread support])
+AS_HELP_STRING([--disable-threads], [disable async thread support]),
 [ case "$enableval" in
     no) enable_threads=no ;;
     *)  enable_threads=yes ;;
   esac ], enable_threads=unknown)
 
 AC_ARG_ENABLE(halfword-emulator,
-[  --enable-halfword-emulator        enable halfword emulator (only for 64bit builds)
-  --disable-halfword-emulator        disable halfword emulator (only for 64bit builds)],
+AS_HELP_STRING([--enable-halfword-emulator],
+               [enable halfword emulator (only for 64bit builds)]),
 [ case "$enableval" in
     no) enable_halfword_emualtor=no ;;
     *)  enable_halfword_emulator=yes ;;
   esac ], enable_halfword_emulator=unknown)
 
 AC_ARG_ENABLE(smp-support,
-[  --enable-smp-support    enable smp support
-  --disable-smp-support   disable smp support],
+AS_HELP_STRING([--enable-smp-support], [enable smp support])
+AS_HELP_STRING([--disable-smp-support], [disable smp support]),
 [ case "$enableval" in
     no) enable_smp_support=no ;;
     *)  enable_smp_support=yes ;;
   esac ], enable_smp_support=unknown)
 
 AC_ARG_WITH(termcap,
-[  --with-termcap          use termcap (default)
-  --without-termcap       do not use any termcap libraries (ncurses,curses,termcap,termlib)],
+AS_HELP_STRING([--with-termcap], [use termcap (default)])
+AS_HELP_STRING([--without-termcap],
+               [do not use any termcap libraries (ncurses,curses,termcap,termlib)]),
 [],
 [with_termcap=yes])
 
 
 AC_ARG_ENABLE(hybrid-heap,
-[  --enable-hybrid-heap    enable hybrid heap
-  --disable-hybrid-heap   disable hybrid heap],
+AS_HELP_STRING([--enable-hybrid-heap], [enable hybrid heap]),
 [ case "$enableval" in
     no) enable_hybrid_heap=no ;;
     *)  enable_hybrid_heap=yes ;;
   esac ], enable_hybrid_heap=unknown)
 
 AC_ARG_ENABLE(lock-checking,
-[  --enable-lock-checking  enable lock checking],
+AS_HELP_STRING([--enable-lock-checking], [enable lock checking]),
 [ case "$enableval" in
     no) enable_lock_check=no ;;
     *)  enable_lock_check=yes ;;
@@ -174,16 +175,15 @@ AC_ARG_ENABLE(lock-checking,
   enable_lock_check=no)
 
 AC_ARG_ENABLE(lock-counter,
-[  --enable-lock-counter    enable lock counters
-  --disable-lock-counter   disable lock counters],
+AS_HELP_STRING([--enable-lock-counter], [enable lock counters]),
 [ case "$enableval" in
     no) enable_lock_count=no ;;
     *)  enable_lock_count=yes ;;
   esac ], enable_lock_count=no)
 
 AC_ARG_ENABLE(kernel-poll,
-[  --enable-kernel-poll    enable kernel poll support
-  --disable-kernel-poll   disable kernel poll support],
+AS_HELP_STRING([--enable-kernel-poll], [enable kernel poll support])
+AS_HELP_STRING([--disable-kernel-poll], [disable kernel poll support]),
 [ case "$enableval" in
     no) enable_kernel_poll=no ;;
     *)  enable_kernel_poll=yes ;;
@@ -191,25 +191,27 @@ AC_ARG_ENABLE(kernel-poll,
 
 
 AC_ARG_ENABLE(sctp,
-[  --enable-sctp           enable sctp support
-  --disable-sctp          disable sctp support],
+AS_HELP_STRING([--enable-sctp], [enable sctp support])
+AS_HELP_STRING([--disable-sctp], [disable sctp support]),
 [ case "$enableval" in
     no) enable_sctp=no ;;
     *)  enable_sctp=yes ;;
   esac ], enable_sctp=unknown)
 
 AC_ARG_ENABLE(hipe,
-[  --enable-hipe           enable hipe support
-  --disable-hipe          disable hipe support])
+AS_HELP_STRING([--enable-hipe], [enable hipe support])
+AS_HELP_STRING([--disable-hipe], [disable hipe support]))
 
 AC_ARG_ENABLE(native-libs,
-[  --enable-native-libs    compile Erlang libraries to native code])
+AS_HELP_STRING([--enable-native-libs],
+               [compile Erlang libraries to native code]))
 
 AC_ARG_ENABLE(tsp,
-[  --enable-tsp            compile tsp app])
+AS_HELP_STRING([--enable-tsp], [compile tsp app]))
 
 AC_ARG_ENABLE(fp-exceptions,
-[  --enable-fp-exceptions    Use hardware floating point exceptions (default if hipe enabled)],
+AS_HELP_STRING([--enable-fp-exceptions],
+               [use hardware floating point exceptions (default if hipe enabled)]),
 [ case "$enableval" in
     no) enable_fp_exceptions=no ;;
     *)  enable_fp_exceptions=yes ;;
@@ -217,7 +219,8 @@ AC_ARG_ENABLE(fp-exceptions,
 ],enable_fp_exceptions=auto)
 
 AC_ARG_ENABLE(darwin-universal,
-[  --enable-darwin-universal    build universal binaries on darwin i386],
+AS_HELP_STRING([--enable-darwin-universal],
+               [build universal binaries on darwin i386]),
 [ case "$enableval" in
     no) enable_darwin_universal=no ;;
     *)  enable_darwin_univeral=yes ;;
@@ -226,7 +229,7 @@ AC_ARG_ENABLE(darwin-universal,
 
 
 AC_ARG_ENABLE(darwin-64bit,
-[  --enable-darwin-64bit    build 64bit binaries on darwin],
+AS_HELP_STRING([--enable-darwin-64bit], [build 64bit binaries on darwin]),
 [ case "$enableval" in
     no) enable_darwin_64bit=no ;;
     *)  enable_darwin_64bit=yes ;;
@@ -234,7 +237,8 @@ AC_ARG_ENABLE(darwin-64bit,
 ],enable_darwin_64bit=no)
 
 AC_ARG_ENABLE(m64-build,
-[  --enable-m64-build    build 64bit binaries using the -m64 flag to (g)cc],
+AS_HELP_STRING([--enable-m64-build],
+               [build 64bit binaries using the -m64 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m64_build=no ;;
     *)  enable_m64_build=yes ;;
@@ -242,7 +246,8 @@ AC_ARG_ENABLE(m64-build,
 ],enable_m64_build=no)
 
 AC_ARG_ENABLE(m32-build,
-[  --enable-m32-build    build 32bit binaries using the -m32 flag to (g)cc],
+AS_HELP_STRING([--enable-m32-build],
+               [build 32bit binaries using the -m32 flag to (g)cc]),
 [ case "$enableval" in
     no) enable_m32_build=no ;;
     *)
@@ -255,7 +260,7 @@ AC_ARG_ENABLE(m32-build,
 ],enable_m32_build=no)
 
 AC_ARG_ENABLE(fixalloc,
-[  --disable-fixalloc      disable the use of fix_alloc])
+AS_HELP_STRING([--disable-fixalloc], [disable the use of fix_alloc]))
 if test x${enable_fixalloc} = xno ; then
   AC_DEFINE(NO_FIX_ALLOC,[],
 	    [Define if you don't want the fix allocator in Erlang])
@@ -263,8 +268,9 @@ fi
 
 AC_SUBST(PERFCTR_PATH)
 AC_ARG_WITH(perfctr,
-[  --with-perfctr=PATH     specify location of perfctr include and lib
-  --without-perfctr       don't use perfctr (default)])
+AS_HELP_STRING([--with-perfctr=PATH],
+               [specify location of perfctr include and lib])
+AS_HELP_STRING([--without-perfctr], [don't use perfctr (default)]))
 
 if test "x$with_perfctr" = "xno" -o "x$with_perfctr" = "x" ; then
     PERFCTR_PATH=
@@ -278,7 +284,8 @@ else
 fi
 
 AC_ARG_ENABLE(clock-gettime,
-[  --enable-clock-gettime  Use clock-gettime for time correction],
+AS_HELP_STRING([--enable-clock-gettime],
+               [use clock-gettime for time correction]),
 [ case "$enableval" in
     no) clock_gettime_correction=no ;;
     *) clock_gettime_correction=yes ;;
@@ -1293,8 +1300,7 @@ dnl zlib
 dnl -------------
 
 AC_ARG_ENABLE(shared-zlib,
-[  --enable-shared-zlib        enable using shared zlib library
-  --disable-shared-zlib       disable shared zlib, compile own zlib source (default)],
+AS_HELP_STRING([--enable-shared-zlib], [enable using shared zlib library]),
 [ case "$enableval" in
     no) enable_shared_zlib=no ;;
     *)  enable_shared_zlib=yes ;;
@@ -3431,9 +3437,12 @@ AC_SUBST(STATIC_ZLIB_LIBS)
 std_ssl_locations="/usr/local /usr/sfw /opt/local /usr /usr/pkg /usr/local/openssl /usr/lib/openssl /usr/openssl /usr/local/ssl /usr/lib/ssl /usr/ssl"
 
 AC_ARG_WITH(ssl-zlib,
-[  --with-ssl-zlib=PATH    specify location of ZLib to be used by OpenSSL
-  --with-ssl-zlib         link SSL with  Zlib (default if found)
-  --without-ssl-zlib      don't link SSL with ZLib])
+AS_HELP_STRING([--with-ssl-zlib=PATH],
+               [specify location of ZLib to be used by OpenSSL])
+AS_HELP_STRING([--with-ssl-zlib],
+               [link SSL with  Zlib (default if found)])
+AS_HELP_STRING([--without-ssl-zlib],
+               [don't link SSL with ZLib]))
 
 
 if  test "x$with_ssl_zlib" = "xno"; then
@@ -3502,13 +3511,13 @@ fi
 		
 			
 AC_ARG_WITH(ssl,
-[  --with-ssl=PATH         specify location of OpenSSL include and lib
-  --with-ssl              use SSL (default)
-  --without-ssl           don't use SSL])
+AS_HELP_STRING([--with-ssl=PATH], [specify location of OpenSSL include and lib])
+AS_HELP_STRING([--with-ssl], [use SSL (default)])
+AS_HELP_STRING([--without-ssl], [don't use SSL]))
 
 AC_ARG_ENABLE(dynamic-ssl-lib,
-[  --enable-dynamic-ssl-lib        enable using dynamic openssl libraries
-  --disable-dynamic-ssl-lib       disable using dynamic openssl libraries],
+AS_HELP_STRING([--disable-dynamic-ssl-lib],
+               [disable using dynamic openssl libraries]),
 [ case "$enableval" in
     no) enable_dynamic_ssl=no ;;
     *)  enable_dynamic_ssl=yes ;;
@@ -3971,9 +3980,9 @@ esac
 
 			
 AC_ARG_WITH(javac,
-[  --with-javac=JAVAC      specify Java compiler to use
-  --with-javac            use a Java compiler if found (default)
-  --without-javac         don't use any Java compiler])
+AS_HELP_STRING([--with-javac=JAVAC], [specify Java compiler to use])
+AS_HELP_STRING([--with-javac], [use a Java compiler if found (default)])
+AS_HELP_STRING([--without-javac], [don't use any Java compiler]))
 
 dnl
 dnl Then there are a number of apps which needs a java compiler...