X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=configure;h=bab25016a1162ecadf3e965a083d37594ac179d5;hp=140711f32f38587ab792955aa0dbb22cd05ded6c;hb=fe8eeaf4a576b4cad2ec4faee8d5e373118771f8;hpb=7c2c26bc4ec5fdab5c6fa72ea325d846b46929e3

diff --git a/configure b/configure
index 140711f3..bab25016 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,178 @@
 #! /bin/sh
 
+# Removing space from IFS makes it much easier to support filenames
+# with spaces. See http://www.dwheeler.com/essays/filenames-in-shell.html
+# for gory details.
+IFS="$(printf '\n\t')"
+
+# Since we don't have space in IFS we use tab to separate things in lists
+tab="$(printf '\t')"
+
+# Set several defaults (optionally specified by the user in
+# environemnt variables)
+CC=${CC:-gcc}
+CXX=${CXX:-g++}
+CFLAGS=${CFLAGS:--O2}
+CXXFLAGS=${CXXFLAGS:-\$(CFLAGS)}
+LDFLAGS=${LDFLAGS:-}
+XAPIAN_CONFIG=${XAPIAN_CONFIG:-xapian-config}
+
+# We don't allow the EMACS or GZIP Makefile variables inherit values
+# from the environment as we do with CC and CXX above. The reason is
+# that these names as environment variables have existing uses other
+# than the program name that we want. (EMACS is set to 't' when a
+# shell is running within emacs and GZIP specifies arguments to pass
+# on the gzip command line).
+
+# Set the defaults for values the user can specify with command-line
+# options.
+PREFIX=/usr/local
+LIBDIR=
+
+usage ()
+{
+    cat <<EOF
+Usage: ./configure [options]...
+
+This script configures notmuch to build on your system.
+
+It verifies that dependencies are available, determines flags needed
+to compile and link against various required libraries, and identifies
+whether various system functions can be used or if locally-provided
+replacements will be built instead.
+
+Finally, it allows you to control various aspects of the build and
+installation process.
+
+First, some common variables can specified via environment variables:
+
+	CC		The C compiler to use
+	CFLAGS		Flags to pass to the C compiler
+	CXX		The C++ compiler to use
+	CXXFLAGS	Flags to pass to the C compiler
+	LDFLAGS		Flags to pass when linking
+
+Each of these values can further be controlled by specifying them
+later on the "make" command line.
+
+Other environment variables can be used to control configure itself,
+(and for which there is no equivalent build-time control):
+
+	XAPIAN_CONFIG	The program to use to determine flags for
+			compiling and linking against the Xapian
+			library. [$XAPIAN_CONFIG]
+
+Additionally, various options can be specified on the configure
+command line.
+
+	--prefix=PREFIX	Install files in PREFIX [$PREFIX]
+
+By default, "make install" will install the resulting program to
+$PREFIX/bin, documentation to $PREFIX/man, etc. You can
+specify an installation prefix other than $PREFIX using
+--prefix, for instance:
+
+	./configure --prefix=\$HOME
+
+Fine tuning of some installation directories is available:
+
+	--libdir=DIR		Install libraries to DIR [PREFIX/lib]
+	--includedir=DIR	Install header files to DIR [PREFIX/include]
+	--mandir=DIR		Install man pages to DIR [PREFIX/share/man]
+	--sysconfdir=DIR	Read-only single-machine data [PREFIX/etc]
+	--emacslispdir=DIR	Emacs code [PREFIX/share/emacs/site-lisp]
+
+Additional options are accepted for compatibility with other
+configure-script calling conventions, but don't do anything yet:
+
+	--build=<cpu>-<vendor>-<os>	Currently ignored
+	--host=<cpu>-<vendor>-<os>	Currently ignored
+	--infodir=DIR			Currently ignored
+	--datadir=DIR			Currently ignored
+	--localstatedir=DIR		Currently ignored
+	--libexecdir=DIR		Currently ignored
+	--disable-maintainer-mode	Currently ignored
+	--disable-dependency-tracking	Currently ignored
+
+EOF
+}
+
+# Parse command-line options
+for option; do
+    if [ "${option}" = '--help' ] ; then
+	usage
+	exit 0
+    elif [ "${option%%=*}" = '--prefix' ] ; then
+	PREFIX="${option#*=}"
+    elif [ "${option%%=*}" = '--libdir' ] ; then
+	LIBDIR="${option#*=}"
+    elif [ "${option%%=*}" = '--includedir' ] ; then
+	INCLUDEDIR="${option#*=}"
+    elif [ "${option%%=*}" = '--mandir' ] ; then
+	MANDIR="${option#*=}"
+    elif [ "${option%%=*}" = '--sysconfdir' ] ; then
+	SYSCONFDIR="${option#*=}"
+    elif [ "${option%%=*}" = '--emacslispdir' ] ; then
+	EMACSLISPDIR="${option#*=}"
+    elif [ "${option%%=*}" = '--build' ] ; then
+	build_option="${option#*=}"
+	case ${build_option} in
+	    *-*-*) ;;
+	    *)
+		echo "Unrecognized value for --build option: ${build_option}"
+		echo "Should be: <cpu>-<vendor>-<os>"
+		echo "See:"
+		echo "	$0 --help"
+		echo ""
+		exit 1
+	esac
+	build_cpu=${build_option%%-*}
+	build_option=${build_option#*-}
+	build_vendor=${build_option%%-*}
+	build_os=${build_option#*-}
+    elif [ "${option%%=*}" = '--host' ] ; then
+	host_option="${option#*=}"
+	case ${host_option} in
+	    *-*-*) ;;
+	    *)
+		echo "Unrecognized value for --host option: ${host_option}"
+		echo "Should be: <cpu>-<vendor>-<os>"
+		echo "See:"
+		echo "	$0 --help"
+		echo ""
+		exit 1
+	esac
+	host_cpu=${host_option%%-*}
+	host_option=${host_option#*-}
+	host_vendor=${host_option%%-*}
+	host_os=${host_option#*-}
+    elif [ "${option%%=*}" = '--infodir' ] ; then
+	true
+    elif [ "${option%%=*}" = '--datadir' ] ; then
+	true
+    elif [ "${option%%=*}" = '--localstatedir' ] ; then
+	true
+    elif [ "${option%%=*}" = '--libexecdir' ] ; then
+	true
+    elif [ "${option}" = '--disable-maintainer-mode' ] ; then
+	true
+    elif [ "${option}" = '--disable-dependency-tracking' ] ; then
+	true
+    else
+	echo "Unrecognized option: ${option}"
+	echo "See:"
+	echo "	$0 --help"
+	echo ""
+	exit 1
+    fi
+done
+
+# We set this value early, (rather than just while printing the
+# Makefile.config file later like most values), because we need to
+# actually investigate this value compared to the ldconfig_paths value
+# below.
+libdir_expanded=${LIBDIR:-${PREFIX}/lib}
+
 cat <<EOF
 Welcome to Notmuch, a system for indexing, searching and tagging your email.
 
@@ -28,39 +201,106 @@ else
     have_pkg_config=0
 fi
 
-if xapian-config --version > /dev/null 2>&1; then
-    echo "Checking for Xapian development files... Yes."
-    have_xapian=1
-else
-    echo "Checking for Xapian development files... No."
-    have_xapian=0
+printf "Checking for Xapian development files... "
+have_xapian=0
+for xapian_config in ${XAPIAN_CONFIG}; do
+    if ${xapian_config} --version > /dev/null 2>&1; then
+	printf "Yes (%s).\n" $(${xapian_config} --version | sed -e 's/.* //')
+	have_xapian=1
+	xapian_cxxflags=$(${xapian_config} --cxxflags)
+	xapian_ldflags=$(${xapian_config} --libs)
+	break
+    fi
+done
+if [ ${have_xapian} = "0" ]; then
+    printf "No.\n"
     errors=$((errors + 1))
 fi
 
-if pkg-config --modversion gmime-2.4 > /dev/null 2>&1; then
-    echo "Checking for GMime 2.4 development files... Yes."
-    have_gmime=1
-else
-    echo "Checking for GMime 2.4 development files... No."
-    have_gmime=0
+printf "Checking for GMime development files... "
+have_gmime=0
+for gmimepc in gmime-2.6 gmime-2.4; do
+    if pkg-config --modversion $gmimepc > /dev/null 2>&1; then
+	printf "Yes ($gmimepc).\n"
+	have_gmime=1
+	gmime_cflags=$(pkg-config --cflags $gmimepc)
+	gmime_ldflags=$(pkg-config --libs $gmimepc)
+    fi
+done
+if [ "$have_gmime" = "0" ]; then
+    printf "No.\n"
     errors=$((errors + 1))
 fi
 
+printf "Checking for talloc development files... "
 if pkg-config --modversion talloc > /dev/null 2>&1; then
-    echo "Checking for talloc development files... Yes."
+    printf "Yes.\n"
     have_talloc=1
+    talloc_cflags=$(pkg-config --cflags talloc)
+    talloc_ldflags=$(pkg-config --libs talloc)
 else
-    echo "Checking for talloc development files... No."
+    printf "No.\n"
     have_talloc=0
+    talloc_cflags=
     errors=$((errors + 1))
 fi
 
+printf "Checking for valgrind development files... "
 if pkg-config --modversion valgrind > /dev/null 2>&1; then
-    echo "Checking for valgrind development files... Yes."
-    have_valgrind=-DHAVE_VALGRIND
+    printf "Yes.\n"
+    have_valgrind=1
+    valgrind_cflags=$(pkg-config --cflags valgrind)
+else
+    printf "No (but that's fine).\n"
+    have_valgrind=0
+fi
+
+if [ -z "${EMACSLISPDIR}" ]; then
+    if pkg-config --modversion emacs > /dev/null 2>&1; then
+	EMACSLISPDIR=$(pkg-config emacs --variable sitepkglispdir)
+    else
+	EMACSLISPDIR='$(prefix)/share/emacs/site-lisp'
+    fi
+fi
+
+printf "Checking if emacs is available... "
+if emacs --quick --batch > /dev/null 2>&1; then
+    printf "Yes.\n"
+    have_emacs=1
+else
+    printf "No (so will not byte-compile emacs code)\n"
+    have_emacs=0
+fi
+
+libdir_in_ldconfig=0
+
+printf "Checking which platform we are on... "
+uname=`uname`
+if [ $uname = "Darwin" ] ; then
+    printf "Mac OS X.\n"
+    platform=MACOSX
+    linker_resolves_library_dependencies=0
+elif [ $uname = "SunOS" ] ; then
+    printf "Solaris.\n"
+    platform=SOLARIS
+    linker_resolves_library_dependencies=0
+elif [ $uname = "Linux" ] ; then
+    printf "Linux\n"
+    platform=LINUX
+    linker_resolves_library_dependencies=1
+    ldconfig_paths=$(/sbin/ldconfig -N -X -v 2>/dev/null | sed -n -e 's,^\(/.*\):\( (.*)\)\?$,\1,p')
+    for path in $ldconfig_paths; do
+	if [ "$path" = "$libdir_expanded" ]; then
+	    libdir_in_ldconfig=1
+	fi
+    done
 else
-    echo "Checking for valgrind development files... No."
-    have_valgrind=
+    printf "Unknown.\n"
+    cat <<EOF
+
+*** Warning: Unknown platform. Notmuch might or might not build correctly.
+
+EOF
 fi
 
 if [ $errors -gt 0 ]; then
@@ -85,29 +325,37 @@ EOF
     fi
     cat <<EOF
 
-On a modern, package-based operating system such as Debian, you can
-install all of the dependencies with the following simple command
-line:
+With any luck, you're using a modern, package-based operating system
+that has all of these packages available in the distribution. In that
+case a simple command will install everything you need. For example:
+
+On Debian and similar systems:
 
 	sudo apt-get install libxapian-dev libgmime-2.4-dev libtalloc-dev
 
-On other systems, a similar command can be used, but the details of the 
-package names may be different, (such as "devel" in place of "dev").
+Or on Fedora and similar systems:
+
+	sudo yum install xapian-core-devel gmime-devel libtalloc-devel
+
+On other systems, similar commands can be used, but the details of the
+package names may be different.
 
 EOF
     if [ $have_pkg_config -eq 0 ]; then
 cat <<EOF
-Note: the pkg-config program is not available. Both this configure
-script and the Makefile of notmuch use pkg-config to find the
-compilation flags required to link against the various libraries
-needed by notmuch. It's possible you simply need to install pkg-config
-with a command such as:
+Note: the pkg-config program is not available. This configure script
+uses pkg-config to find the compilation flags required to link against
+the various libraries needed by notmuch. It's possible you simply need
+to install pkg-config with a command such as:
 
 	sudo apt-get install pkg-config
+Or:
+	sudo yum install pkgconfig
 
 But if pkg-config is not available for your system, then you will need
-to manually edit the notmuch Makefile to set the variables such as
-CFLAGS and LDFLAGS to the correct values without calling pkg-config.
+to modify the configure script to manually set the cflags and ldflags
+variables to the correct values to link against each library in each
+case that pkg-config could not be used to determine those values.
 
 EOF
     fi
@@ -120,6 +368,72 @@ EOF
     exit 1
 fi
 
+printf "Checking for getline... "
+if ${CC} -o compat/have_getline compat/have_getline.c > /dev/null 2>&1
+then
+    printf "Yes.\n"
+    have_getline=1
+else
+    printf "No (will use our own instead).\n"
+    have_getline=0
+fi
+rm -f compat/have_getline
+
+printf "Checking for strcasestr... "
+if ${CC} -o compat/have_strcasestr compat/have_strcasestr.c > /dev/null 2>&1
+then
+    printf "Yes.\n"
+    have_strcasestr=1
+else
+    printf "No (will use our own instead).\n"
+    have_strcasestr=0
+fi
+rm -f compat/have_strcasestr
+
+printf "int main(void){return 0;}\n" > minimal.c
+
+printf "Checking for rpath support... "
+if ${CC} -Wl,--enable-new-dtags -Wl,-rpath,/tmp/ -o minimal minimal.c >/dev/null 2>&1
+then
+    printf "Yes.\n"
+    rpath_ldflags="-Wl,--enable-new-dtags -Wl,-rpath,\$(libdir)"
+else
+    printf "No (nothing to worry about).\n"
+    rpath_ldflags=""
+fi
+
+printf "Checking for -Wl,--as-needed... "
+if ${CC} -Wl,--as-needed -o minimal minimal.c >/dev/null 2>&1
+then
+    printf "Yes.\n"
+    as_needed_ldflags="-Wl,--as-needed"
+else
+    printf "No (nothing to worry about).\n"
+    as_needed_ldflags=""
+fi
+
+WARN_CXXFLAGS=""
+printf "Checking for available C++ compiler warning flags... "
+for flag in -Wall -Wextra -Wwrite-strings -Wswitch-enum; do
+    if ${CC} $flag -o minimal minimal.c > /dev/null 2>&1
+    then
+	WARN_CXXFLAGS="${WARN_CXXFLAGS}${WARN_CXXFLAGS:+ }${flag}"
+    fi
+done
+printf "\n\t${WARN_CXXFLAGS}\n"
+
+WARN_CFLAGS="${WARN_CXXFLAGS}"
+printf "Checking for available C compiler warning flags... "
+for flag in -Wmissing-declarations; do
+    if ${CC} $flag -o minimal minimal.c > /dev/null 2>&1
+    then
+	WARN_CFLAGS="${WARN_CFLAGS}${WARN_CFLAGS:+ }${flag}"
+    fi
+done
+printf "\n\t${WARN_CFLAGS}\n"
+
+rm -f minimal minimal.c
+	
 cat <<EOF
 
 All required packages were found. You may now run the following
@@ -132,6 +446,121 @@ EOF
 
 # construct the Makefile.config
 cat > Makefile.config <<EOF
-prefix = /usr/local
-CFLAGS += ${have_valgrind}
+# This Makefile.config was automatically generated by the ./configure
+# script of notmuch. If the configure script identified anything
+# incorrectly, then you can edit this file to try to correct things,
+# but be warned that if configure is run again it will destroy your
+# changes, (and this could happen by simply calling "make" if the
+# configure script is updated).
+
+# The C compiler to use
+CC = ${CC}
+
+# The C++ compiler to use
+CXX = ${CXX}
+
+# Command to execute emacs from Makefiles
+EMACS = emacs --quick
+
+# Default FLAGS for C compiler (can be overridden by user such as "make CFLAGS=-g")
+CFLAGS = ${CFLAGS}
+
+# Default FLAGS for C++ compiler (can be overridden by user such as "make CXXFLAGS=-g")
+CXXFLAGS = ${CXXFLAGS}
+
+# Default FLAGS for the linker (can be overridden by user such as "make LDFLAGS=-znow")
+LDFLAGS = ${LDFLAGS}
+
+# Flags to enable warnings when using the C++ compiler
+WARN_CXXFLAGS=${WARN_CXXFLAGS}
+
+# Flags to enable warnings when using the C compiler
+WARN_CFLAGS=${WARN_CFLAGS}
+
+# The prefix to which notmuch should be installed
+# Note: If you change this value here, be sure to ensure that the
+# LIBDIR_IN_LDCONFIG value below is still set correctly.
+prefix = ${PREFIX}
+
+# The directory to which libraries should be installed
+# Note: If you change this value here, be sure to ensure that the
+# LIBDIR_IN_LDCONFIG value below is still set correctly.
+libdir = ${LIBDIR:=\$(prefix)/lib}
+
+# Whether libdir is in a path configured into ldconfig
+LIBDIR_IN_LDCONFIG = ${libdir_in_ldconfig}
+
+# The directory to which header files should be installed
+includedir = ${INCLUDEDIR:=\$(prefix)/include}
+
+# The directory to which man pages should be installed
+mandir = ${MANDIR:=\$(prefix)/share/man}
+
+# The directory to which read-only (configuration) filesshould be installed
+sysconfdir = ${SYSCONFDIR:=\$(prefix)/etc}
+
+# The directory to which emacs lisp files should be installed
+emacslispdir=${EMACSLISPDIR}
+
+# Whether there's an emacs binary available for byte-compiling
+HAVE_EMACS = ${have_emacs}
+
+# The directory to which desktop files should be installed
+desktop_dir = \$(prefix)/share/applications
+
+# The directory to which bash completions files should be installed
+bash_completion_dir = \$(sysconfdir)/bash_completion.d
+
+# The directory to which zsh completions files should be installed
+zsh_completion_dir = \$(prefix)/share/zsh/functions/Completion/Unix
+
+# Whether the getline function is available (if not, then notmuch will
+# build its own version)
+HAVE_GETLINE = ${have_getline}
+
+# Whether the strcasestr function is available (if not, then notmuch will
+# build its own version)
+HAVE_STRCASESTR = ${have_strcasestr}
+
+# Supported platforms (so far) are: LINUX, MACOSX, SOLARIS
+PLATFORM = ${platform}
+
+# Whether the linker will automatically resolve the dependency of one
+# library on another (if not, then linking a binary requires linking
+# directly against both)
+LINKER_RESOLVES_LIBRARY_DEPENDENCIES = ${linker_resolves_library_dependencies}
+
+# Flags needed to compile and link against Xapian
+XAPIAN_CXXFLAGS = ${xapian_cxxflags}
+XAPIAN_LDFLAGS = ${xapian_ldflags}
+
+# Flags needed to compile and link against GMime-2.4
+GMIME_CFLAGS = ${gmime_cflags}
+GMIME_LDFLAGS = ${gmime_ldflags}
+
+# Flags needed to compile and link against talloc
+TALLOC_CFLAGS = ${talloc_cflags}
+TALLOC_LDFLAGS = ${talloc_ldflags}
+
+# Flags needed to have linker set rpath attribute
+RPATH_LDFLAGS = ${rpath_ldflags}
+
+# Flags needed to have linker link only to necessary libraries
+AS_NEEDED_LDFLAGS = ${as_needed_ldflags}
+
+# Whether valgrind header files are available
+HAVE_VALGRIND = ${have_valgrind}
+
+# And if so, flags needed at compile time for valgrind macros
+VALGRIND_CFLAGS = ${valgrind_cflags}
+
+# Combined flags for compiling and linking against all of the above
+CONFIGURE_CFLAGS = -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS)      \\
+		   \$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND)   \\
+		   \$(VALGRIND_CFLAGS) -DHAVE_STRCASESTR=\$(HAVE_STRCASESTR)
+CONFIGURE_CXXFLAGS = -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS)    \\
+		     \$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND) \\
+		     \$(VALGRIND_CFLAGS) \$(XAPIAN_CXXFLAGS)             \\
+                     -DHAVE_STRCASESTR=\$(HAVE_STRCASESTR)
+CONFIGURE_LDFLAGS =  \$(GMIME_LDFLAGS) \$(TALLOC_LDFLAGS) \$(XAPIAN_LDFLAGS)
 EOF