From 39a629b0d63ca675bd24844c924203d30bd3ba9b Mon Sep 17 00:00:00 2001 From: Paul Joseph Davis Date: Tue, 18 Aug 2009 01:27:03 +0000 Subject: Applying markh's Windows build patch. Fixes COUCHDB-406 git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@805243 13f79535-47bb-0310-9956-ffa450edef68 --- README | 141 +++++++++++++++++++++++++++++- bin/Makefile.am | 10 +++ bin/couchdb.bat.tpl.in | 14 +++ configure.ac | 89 ++++++++++++++++--- etc/couchdb/Makefile.am | 24 +++-- src/couchdb/Makefile.am | 50 +++++++++-- src/couchdb/priv/couchspawnkillable | 20 ----- src/couchdb/priv/couchspawnkillable.sh | 20 +++++ src/couchdb/priv/couchspawnkillable_win.c | 139 +++++++++++++++++++++++++++++ 9 files changed, 458 insertions(+), 49 deletions(-) create mode 100644 bin/couchdb.bat.tpl.in delete mode 100755 src/couchdb/priv/couchspawnkillable create mode 100755 src/couchdb/priv/couchspawnkillable.sh create mode 100644 src/couchdb/priv/couchspawnkillable_win.c diff --git a/README b/README index 4c0f10a3..3a3deece 100644 --- a/README +++ b/README @@ -261,4 +261,143 @@ If you want the Apache CouchDB daemon to run at startup, copy the Windows ~~~~~~~ -Windows documentation is incomplete. Please submit suggestions. +The Windows build process is very similar to the erlang build process; +indeed, we re-use some of their shell-scripts. Therefore, it is recommended +you build erlang itself from sources - this will ensure that you have all the +tools and environment necessary to build couch itself. A binary build of +erlang should work for those in a hurry (see below), but it isn't really +supported. See the end of these notes or information on building erlang +which is relevant to couch. + +Build Tools +----------- + +To build on Windows, you need the following tools: + +* cygwin - it isn't clear exactly which tools you need - select all + 'development' tools. As mentioned above, if you can build erlang itself + you have everything you need. + +* VS2008 + +* Erlang - a built source distro of erlang is preferred. A binary + distribution of Erlang is OK, but you will also need a source distribution + for the cc.sh/link.sh etc wrapper shell scripts used by erlang - couch + reuses these scripts in its build process and the license isn't compatible + enough for us to clone them. + +Other tools: + +* Fetch the 'curl' sources and build them as per the instructions. The cygwin + curl binaries are built with a different compiler so are no good. + +* Download the ICU binaries built with VS2008. + +* Download and build the same version of spidermonkey the version of couch + requires - at time of writing this is 1.8. Different versions will not + work (ie, at time of writing, 1.8.1 does not work with couch). + +Build Environment +----------------- + +Setup your environment: + +For the sake of everything you find sacred: + set CYGWIN=nontsec +BEFORE starting any cygwin environments. Set this variable globally. Without +it you can expect all kinds of permissions-related problems. + +Execute the VC .bat files to setup your environment such that cl.exe etc are +on your path. Start a cygwin shell. + +Check your environment: + * which link -> should point at the MS linker. + * which cl -> should point at the MS compiler. + +If you are building from a source version of erlang: + + Executing "eval `./otp_build env_win32`" as per the Erlang build + instructions, will have set everything up, including the CC, LD etc + variables. Do this even if erlang is already built and you are just + building couch. This will have set the variables ERL_TOP, CC, LD, AD + and a number of others. + + Then, PATH must be adjusted such what 'which erl' lists the erl.exe + you built rather than the 'erl' script in the erts/etc/win32/cygwin_tools + directory - eg: + + $ export PATH=$ERL_TOP/release/win32/erts-5.7.2/bin:$PATH + +If you are building from a binary version of erlang: + + * set ERL_TOP to the top of the erlang directory + + Add to the PATH such that 'which erl' points at your erl.exe - eg: + + $ export PATH=$ERL_TOP/erts-5.6.5/bin + + You must also ensure the cc.sh etc scripts from the Erlang source tree is + on your PATH. Use "which cc.sh" to ensure the path is set correctly. + + Then set more variables: + $ export CC=cc.sh + $ export LD=ld.sh + $ export AR=ar.sh + $ export RC=rc.sh + +Set COUCHDB_TOP to the source directory. + +And we should be ready to bootstrap and build. + +Building +-------- + +We start by bootstrapping: + + $ cd $COUCHDB_TOP + $ ./bootstrap + You have bootstrapped Apache CouchDB, time to relax. + + Run `./configure' to configure the source before you install. + $ + +Relax. + +Now we need to run a complicated configure command-line. + + $ ./configure \ + --with-js-include=/cygdrive/c/path_to_seamonkey_include \ + --with-js-lib=/cygdrive/c/path_to_seamonkey_lib \ + --with-win32-icu-binaries=/cygdrive/c/path_to_icu_binaries_root \ + --with-erlang=$ERL_TOP/release/win32/usr/include \ + --with-win32-curl=/cygdrive/c/path/to/curl/root/directory + --prefix=$ERL_TOP/release/win32 + +Note that all paths must be in cygwin format. Those starting with $ERL_TOP +can be entered literally, assuming ERL_TOP is set as described above. + +Relax on your new couch: + + The $ERL_TOP/win32/release directory is now ready to .zip up, be packaged + by an installer, etc. To test it in-place, execute: + + $ $ERL_TOP/win32/release/bin/couchdb.bat + + and everything should work fine. + +Additional Notes: + +Building erlang: +* Follow the instructions as described. You do need openssl, but don't need + the GUI tools. You may like to execute: + + echo "skipping gs" > lib/gs/SKIP + echo "skipping ic" > lib/ic/SKIP + + To skip them. + +* Ensure 'which link' points at the ms linker; one in /usr/bin may be found + instead. + +* After executing './otp_build release -a', be sure to execute Install.exe in + the release/win32 directory to setup the release/win32/bin dir correctly. diff --git a/bin/Makefile.am b/bin/Makefile.am index cb0a827a..93a53192 100644 --- a/bin/Makefile.am +++ b/bin/Makefile.am @@ -10,7 +10,12 @@ ## License for the specific language governing permissions and limitations under ## the License. +if WINDOWS +bin_SCRIPTS = couchdb.bat +else bin_SCRIPTS = couchdb couchjs +endif + noinst_SCRIPTS = couchjs_dev if HELP2MAN @@ -69,6 +74,11 @@ couchjs_dev: couchjs.tpl $@ < $< chmod +x $@ +couchdb.bat: couchdb.bat.tpl + sed -e "s|%ICU_CONFIG%|$(ICU_CONFIG)|g" \ + -e "s|%version%|@version@|g" \ + $< > $@ + HELP2MAN_OPTION=--no-info --help-option="-h" --version-option="-V" # XXX: Because the scripts are made at build time for the user we need to diff --git a/bin/couchdb.bat.tpl.in b/bin/couchdb.bat.tpl.in new file mode 100644 index 00000000..99c096f1 --- /dev/null +++ b/bin/couchdb.bat.tpl.in @@ -0,0 +1,14 @@ +@echo off +setlocal +rem First change to the erlang bin directory +cd %~dp0 + +rem Allow a different erlang executable (eg, werl) to be used. +if "%ERL%x" == "x" set ERL=erl.exe + +echo CouchDB %version% - prepare to relax... +%ERL% -smp auto -sasl errlog_type error ^ + -eval "application:load(crypto)" ^ + -eval "application:load(couch)" ^ + -eval "crypto:start()" ^ + -eval "couch_server:start([""../etc/couchdb/default.ini"", ""../etc/couchdb/local.ini""]), receive done -> done end." diff --git a/configure.ac b/configure.ac index c7b766f2..a281a868 100644 --- a/configure.ac +++ b/configure.ac @@ -80,17 +80,36 @@ AC_ARG_VAR([FLAGS], [general flags to prepend to LDFLAGS and CPPFLAGS]) LIB_FLAGS="$JS_LIB_FLAGS -L/usr/local/lib -L/opt/local/lib" LIBS="$LIB_FLAGS $LIBS" -# XP_UNIX required for jsapi.h and has been tested to work on Linux and Darwin. -FLAGS="$LIB_FLAGS $ERLANG_FLAGS $JS_FLAGS -DXP_UNIX $FLAGS" -CPPFLAGS="$FLAGS $CPPFLAGS" -# manually linking libm is requred for FreeBSD 7.0 -LDFLAGS="$FLAGS -lm $LDFLAGS" + +case "$(uname -s)" in + CYGWIN*) + FLAGS="$LIB_FLAGS $ERLANG_FLAGS $JS_FLAGS -DXP_WIN $FLAGS" + CPPFLAGS="$FLAGS $CPPFLAGS" + LDFLAGS="$FLAGS $LDFLAGS" + IS_WINDOWS="TRUE" + # The erlang cc.sh/ld.sh scripts will convert a -O option + # into the same optimization flags erlang itself uses. + CFLAGS="-O2" + LTCFLAGS="$CFLAGS" + ;; + *) + # XP_UNIX required for jsapi.h and has been tested to work on Linux and Darwin. + FLAGS="$LIB_FLAGS $ERLANG_FLAGS $JS_FLAGS -DXP_UNIX $FLAGS" + CPPFLAGS="$FLAGS $CPPFLAGS" + # manually linking libm is requred for FreeBSD 7.0 + LDFLAGS="$FLAGS -lm $LDFLAGS" + ;; +esac + +AM_CONDITIONAL([WINDOWS], [test x$IS_WINDOWS = xTRUE]) AC_CHECK_LIB([mozjs], [JS_NewContext], [], [ AC_CHECK_LIB([js], [JS_NewContext], [], [ - AC_MSG_ERROR([Could not find the js library. + AC_CHECK_LIB([js3250], [JS_NewContext], [], [ + AC_CHECK_LIB([js32], [JS_NewContext], [], [ + AC_MSG_ERROR([Could not find the js library. -Is the Mozilla SpiderMonkey library installed?])])]) +Is the Mozilla SpiderMonkey library installed?])])])])]) AC_CHECK_HEADER([jsapi.h], [], [ AC_CHECK_HEADER([js/jsapi.h], @@ -116,18 +135,39 @@ AC_COMPILE_IFELSE( CFLAGS="$OLD_CFLAGS" AC_LANG_POP(C) -AC_CHECK_ICU([3]) +AC_ARG_WITH([win32-icu-binaries], [AC_HELP_STRING([--with-win32-icu-binaries=PATH], + [set PATH to the Win32 native ICU binaries directory])], [ + ICU_CONFIG="" # supposed to be a command to query options... + ICU_LOCAL_CFLAGS="-I$withval/include" + ICU_LOCAL_LDFLAGS="-L$withval/lib" + ICU_LOCAL_BIN=$withval/bin +], [ + AC_CHECK_ICU([3]) + ICU_LOCAL_CFLAGS=`$ICU_CONFIG --cppflags-searchpath` + ICU_LOCAL_LDFLAGS=`$ICU_CONFIG --ldflags-searchpath` + ICU_LOCAL_BIN= +]) -ICU_LOCAL_CFLAGS=`$ICU_CONFIG --cppflags-searchpath` -ICU_LOCAL_LDFLAGS=`$ICU_CONFIG --ldflags-searchpath` AC_SUBST(ICU_CONFIG) AC_SUBST(ICU_LOCAL_CFLAGS) AC_SUBST(ICU_LOCAL_LDFLAGS) +AC_SUBST(ICU_LOCAL_BIN) + +AC_ARG_WITH([win32-curl], [AC_HELP_STRING([--with-win32-curl=PATH], + [set PATH to the Win32 native curl directory])], [ + # default build on windows is a static lib, and that's what we want too + CURL_CFLAGS="-I$withval/include -DCURL_STATICLIB" + CURL_LIBS="$withval/lib/libcurl" + CURL_LDFLAGS="-l$CURL_LIBS -lWs2_32 -lkernel32 -luser32 -ladvapi32 -lWldap32" +], [ + AC_CHECK_CURL([7.15.5]) + CURL_LDFLAGS=-lcurl +]) -AC_CHECK_CURL([7.15.5]) AC_SUBST(CURL_CFLAGS) AC_SUBST(CURL_LIBS) +AC_SUBST(CURL_LDFLAGS) case "$(uname -s)" in Linux) @@ -268,8 +308,15 @@ AC_SUBST([locallibdir], [${libdir}/${package_identifier}]) AC_SUBST([localstatelibdir], [${localstatedir}/lib/${package_identifier}]) AC_SUBST([localstatelogdir], [${localstatedir}/log/${package_identifier}]) AC_SUBST([localstaterundir], [${localstatedir}/run/${package_identifier}]) -AC_SUBST([locallibbindir], [${locallibdir}/bin]) -AC_SUBST([localerlanglibdir], [${locallibdir}/erlang/lib]) + +# On Windows we install directly into our erlang distribution. +if test x${IS_WINDOWS} = xTRUE; then + AC_SUBST([locallibbindir], [${prefix}/bin]) + AC_SUBST([localerlanglibdir], [${libdir}]) +else + AC_SUBST([locallibbindir], [${locallibdir}/bin]) + AC_SUBST([localerlanglibdir], [${locallibdir}/erlang/lib]) +fi # fix for older autotools that don't define "abs_top_YYY" by default AC_SUBST(abs_top_srcdir) @@ -280,6 +327,7 @@ AC_REVISION([LOCAL_VERSION]) AC_CONFIG_FILES([Makefile]) AC_CONFIG_FILES([bin/couchjs.tpl]) AC_CONFIG_FILES([bin/couchdb.tpl]) +AC_CONFIG_FILES([bin/couchdb.bat.tpl]) AC_CONFIG_FILES([bin/Makefile]) AC_CONFIG_FILES([etc/couchdb/Makefile]) AC_CONFIG_FILES([etc/couchdb/default.ini.tpl]) @@ -304,6 +352,21 @@ AC_CONFIG_FILES([var/Makefile]) AC_OUTPUT +# *sob* - on Windows libtool fails as 'libname_spec' isn't correct (it +# expects GNU style lib names). I can't work out how to configure this +# option sanely, so we pass the script through sed to modify it. +# Also, the erlang cc.sh script doesn't cope well with the '-link' command +# line option libtool provides. +# PLEASE, someone help put this out of its misery!! +# This hackery is being tracked via COUCHDB-440. +if test x${IS_WINDOWS} = xTRUE; then + sed -e 's,libname_spec="lib\\$name",libname_spec="\\\$name",' \ + -e 's,-link,,' \ + < libtool > libtool.tmp + mv libtool.tmp libtool + # probably would chmod +x if we weren't on windows... +fi + echo echo "You have configured Apache CouchDB, time to relax." echo diff --git a/etc/couchdb/Makefile.am b/etc/couchdb/Makefile.am index 70463f59..253634de 100644 --- a/etc/couchdb/Makefile.am +++ b/etc/couchdb/Makefile.am @@ -24,6 +24,17 @@ transform = @program_transform_name@ couchjs_command_name = `echo couchjs | sed '$(transform)'` couchjs_dev_command_name = `echo couchjs_dev | sed '$(transform)'` +if WINDOWS +default.ini: default.ini.tpl + sed -e "s|%bindir%|.|g" \ + -e "s|%localconfdir%|$(localconfdir)|g" \ + -e "s|%localdatadir%|../share/couchdb|g" \ + -e "s|%localstatelibdir%|../var/lib/couchdb|g" \ + -e "s|%localstatelogdir%|../var/log/couchdb|g" \ + -e "s|%couchprivlibdir%|../lib/couch-$(version)/priv/lib|g" \ + -e "s|%couchjs_command_name%|couchjs.exe|g" \ + < $< > $@ +else default.ini: default.ini.tpl sed -e "s|%bindir%|$(bindir)|g" \ -e "s|%localconfdir%|$(localconfdir)|g" \ @@ -33,6 +44,7 @@ default.ini: default.ini.tpl -e "s|%couchprivlibdir%|$(couchprivlibdir)|g" \ -e "s|%couchjs_command_name%|$(couchjs_command_name)|g" \ < $< > $@ +endif default_dev.ini: default.ini.tpl sed -e "s|%bindir%|$(abs_top_srcdir)/bin|g" \ @@ -48,16 +60,16 @@ local_dev.ini: cp local.ini $@ install-data-hook: - if test ! -f "$(DESTDIR)/$(localconfdir)/local.ini"; then \ - cp $(srcdir)/local.ini "$(DESTDIR)/$(localconfdir)/local.ini"; \ + if test ! -f "$(DESTDIR)$(localconfdir)/local.ini"; then \ + cp $(srcdir)/local.ini "$(DESTDIR)$(localconfdir)/local.ini"; \ fi if test ! "$(mkdir_p)" = ""; then \ - $(mkdir_p) "$(DESTDIR)/$(localconfdir)/default.d"; \ - $(mkdir_p) "$(DESTDIR)/$(localconfdir)/local.d"; \ + $(mkdir_p) "$(DESTDIR)$(localconfdir)/default.d"; \ + $(mkdir_p) "$(DESTDIR)$(localconfdir)/local.d"; \ else \ echo "WARNING: You may have to create these directories by hand."; \ - mkdir -p "$(DESTDIR)/$(localconfdir)/default.d"; \ - mkdir -p "$(DESTDIR)/$(localconfdir)/local.d"; \ + mkdir -p "$(DESTDIR)$(localconfdir)/default.d"; \ + mkdir -p "$(DESTDIR)$(localconfdir)/local.d"; \ fi uninstall-local: diff --git a/src/couchdb/Makefile.am b/src/couchdb/Makefile.am index 7d7b1720..89a0c7f2 100644 --- a/src/couchdb/Makefile.am +++ b/src/couchdb/Makefile.am @@ -13,6 +13,11 @@ SUBDIRS = priv ICU_LOCAL_FLAGS = $(ICU_LOCAL_CFLAGS) $(ICU_LOCAL_LDFLAGS) +if WINDOWS +ICU_LOCAL_LIBS=-licuuc -licudt -licuin +else +ICU_LOCAL_LIBS=-licuuc -licudata -licui18n +endif # devdocdir = $(localdocdir)/developer/couchdb couchlibdir = $(localerlanglibdir)/couch-$(version) @@ -25,19 +30,28 @@ couchprivlib_LTLIBRARIES = couch_erl_driver.la couch_erl_driver_la_SOURCES = couch_erl_driver.c couch_erl_driver_la_LDFLAGS = -module -avoid-version $(ICU_LOCAL_FLAGS) couch_erl_driver_la_CFLAGS = $(ICU_LOCAL_FLAGS) -couch_erl_driver_la_LIBADD = -licuuc -licudata -licui18n +couch_erl_driver_la_LIBADD = $(ICU_LOCAL_LIBS) locallibbin_PROGRAMS = couchjs couchjs_SOURCES = couch_js.c curlhelper.c curlhelper.h -couchjs_LDLAGS = $(CURL_LDLAGS) +couchjs_LDFLAGS = $(CURL_LDFLAGS) couchjs_CFLAGS = $(CURL_CFLAGS) -couchjs_LDADD = -lcurl +couchjs_LDADD = $(CURL_LDFLAGS) + +if WINDOWS +priv_couchspawnkillable_win_SOURCES = priv/couchspawnkillable_win.c +couchpriv_PROGRAMS = priv/couchspawnkillable_win +couch_erl_driver_la_LDFLAGS += -no-undefined + +# copy ICU dlls for the erlang driver +dist_couch_erl_driver_la_DATA=$(ICU_LOCAL_BIN)/icuuc42.dll $(ICU_LOCAL_BIN)/icudt42.dll $(ICU_LOCAL_BIN)/icuin42.dll +couch_erl_driver_ladir=$(bindir) +endif couchinclude_DATA = couch_db.hrl couchebin_DATA = $(compiled_files) -couchpriv_SCRIPTS = priv/couchspawnkillable # dist_devdoc_DATA = $(doc_base) $(doc_modules) @@ -98,6 +112,7 @@ source_files = \ EXTRA_DIST = $(source_files) couch_db.hrl couch_stats.hrl compiled_files = \ + priv/couchspawnkillable \ couch.app \ couch_btree.beam \ couch_batch_save.beam \ @@ -191,14 +206,31 @@ couch.app: couch.app.tpl %.beam: %.erl couch_db.hrl $(ERLC) $(ERLC_FLAGS) ${TEST} $<; +if WINDOWS +priv/couchspawnkillable: priv/couchspawnkillable_win + cp $< $@ +else +priv/couchspawnkillable: priv/couchspawnkillable.sh + cp $< $@ +endif + install-data-hook: - if test -f "$(DESTDIR)/$(couchprivlibdir)/couch_erl_driver"; then \ - rm -f "$(DESTDIR)/$(couchprivlibdir)/couch_erl_driver.so"; \ - cd "$(DESTDIR)/$(couchprivlibdir)" && \ + if test -f "$(DESTDIR)$(couchprivlibdir)/couch_erl_driver"; then \ + rm -f "$(DESTDIR)$(couchprivlibdir)/couch_erl_driver.so"; \ + cd "$(DESTDIR)$(couchprivlibdir)" && \ $(LN_S) couch_erl_driver couch_erl_driver.so; \ fi +if WINDOWS +# libtool and automake have defeated markh. For each of our executables +# we end up with 2 copies - one directly in the 'target' folder (eg, 'priv') +# and another - the correct one - in .libs. The former doesn't work but is +# what gets installed for 'couchspawnkillable' - but the correct one for +# couchjs.exe *does* get copied. *shrug* So just clobber it with the +# correct one here... See bug COUCHDB-439 + $(INSTALL) priv/.libs/couchspawnkillable_win.exe "$(DESTDIR)$(couchprivdir)/couchspawnkillable.exe" +endif uninstall-local: - if test -f "$(DESTDIR)/$(couchprivlibdir)/couch_erl_driver"; then \ - rm -f "$(DESTDIR)/$(couchprivlibdir)/couch_erl_driver.so"; \ + if test -f "$(DESTDIR)$(couchprivlibdir)/couch_erl_driver"; then \ + rm -f "$(DESTDIR)$(couchprivlibdir)/couch_erl_driver.so"; \ fi diff --git a/src/couchdb/priv/couchspawnkillable b/src/couchdb/priv/couchspawnkillable deleted file mode 100755 index f8d042e3..00000000 --- a/src/couchdb/priv/couchspawnkillable +++ /dev/null @@ -1,20 +0,0 @@ -#! /bin/sh -e - -# Licensed under the Apache License, Version 2.0 (the "License"); you may not -# use this file except in compliance with the License. You may obtain a copy of -# the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -# License for the specific language governing permissions and limitations under -# the License. - -# The purpose of this script is to echo an OS specific command before launching -# the actual process. This provides a way for Erlang to hard-kill its external -# processes. - -echo "kill -9 $$" -exec $* diff --git a/src/couchdb/priv/couchspawnkillable.sh b/src/couchdb/priv/couchspawnkillable.sh new file mode 100755 index 00000000..f8d042e3 --- /dev/null +++ b/src/couchdb/priv/couchspawnkillable.sh @@ -0,0 +1,20 @@ +#! /bin/sh -e + +# Licensed under the Apache License, Version 2.0 (the "License"); you may not +# use this file except in compliance with the License. You may obtain a copy of +# the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations under +# the License. + +# The purpose of this script is to echo an OS specific command before launching +# the actual process. This provides a way for Erlang to hard-kill its external +# processes. + +echo "kill -9 $$" +exec $* diff --git a/src/couchdb/priv/couchspawnkillable_win.c b/src/couchdb/priv/couchspawnkillable_win.c new file mode 100644 index 00000000..f812711e --- /dev/null +++ b/src/couchdb/priv/couchspawnkillable_win.c @@ -0,0 +1,139 @@ +// Licensed under the Apache License, Version 2.0 (the "License"); you may not +// use this file except in compliance with the License. You may obtain a copy of +// the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +// License for the specific language governing permissions and limitations under +// the License. + +// Do what 2 lines of shell script in couchspawnkillable does... +// * Create a new suspended process with the same (duplicated) standard +// handles as us. +// * Write a line to stdout, consisting of the path to ourselves, plus +// '--kill {pid}' where {pid} is the PID of the newly created process. +// * Un-suspend the new process. +// * Terminate + +// Later, couch will call us with --kill and the PID, so we dutifully +// terminate the specified PID. + +#include +#include "windows.h" + +char *get_child_cmdline(int argc, char **argv) +{ + // make a new command-line, but skipping me. + // XXX - todo - spaces etc in args??? + int i; + char *p, *cmdline; + int nchars = 0; + int nthis = 1; + for (i=1;i