configure: Allow user to specify compiler to be used.

[notmuch] / configure

diff --git a/configure b/configure
index fe46c8e300233ab37cdc052a9db1b49cae089e4c..cd4a30e22dd11a8252e1565402d8706a4dc031d6 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,5 +1,8 @@
 #! /bin/sh
 
 #! /bin/sh
 

+CC=${CC:-gcc}
+CXX=${CXX:-g++}
+

 cat <<EOF
 Welcome to Notmuch, a system for indexing, searching and tagging your email.
 
 cat <<EOF
 Welcome to Notmuch, a system for indexing, searching and tagging your email.
 


@@ -7,14 +10,16 @@ We hope that the process of building and installing notmuch is quick
 and smooth so that you can soon be reading and processing your email
 more efficiently than ever.
 
 and smooth so that you can soon be reading and processing your email
 more efficiently than ever.
 

-If anything goes wrong in this process, please do as much as you can
-to figure out what could be different on your machine compared to
-those of the notmuch developers. Then, please email those details to
-Carl Worth <cworth@cworth.org> so that we can hopefully make future
+If anything goes wrong in the configure process, you can override any
+decisions it makes by manually editing the Makefile.config file that
+it creates. Also please do as much as you can to figure out what could
+be different on your machine compared to those of the notmuch
+developers. Then, please email those details to the Notmuch list
+(notmuch@notmuchmail.org) so that we can hopefully make future

 versions of notmuch easier for you to use.
 
 versions of notmuch easier for you to use.
 

-We'll now investigate your system to find verify that various software
-components that notmuch relies on are available.
+We'll now investigate your system to verify that all required
+dependencies are available:

 
 EOF
 
 
 EOF
 


@@ -26,33 +31,59 @@ else
     have_pkg_config=0
 fi
 
     have_pkg_config=0
 fi
 

+printf "Checking for Xapian development files... "

 if xapian-config --version > /dev/null 2>&1; then
 if xapian-config --version > /dev/null 2>&1; then

-    echo "Checking for Xapian development files... Yes."
+    printf "Yes.\n"

     have_xapian=1
     have_xapian=1

+    xapian_cxxflags=$(xapian-config --cxxflags)
+    xapian_ldflags=$(xapian-config --libs)

 else
 else

-    echo "Checking for Xapian development files... No."
+    printf "No.\n"

     have_xapian=0
     errors=$((errors + 1))
 fi
 
     have_xapian=0
     errors=$((errors + 1))
 fi
 

+printf "Checking for GMime 2.4 development files... "

 if pkg-config --modversion gmime-2.4 > /dev/null 2>&1; then
 if pkg-config --modversion gmime-2.4 > /dev/null 2>&1; then

-    echo "Checking for GMime 2.4 development files... Yes."
+    printf "Yes.\n"

     have_gmime=1
     have_gmime=1

+    gmime_cflags=$(pkg-config --cflags gmime-2.4)
+    gmime_ldflags=$(pkg-config --libs gmime-2.4)

 else
 else

-    echo "Checking for GMime 2.4 development files... No."
+    printf "No.\n"

     have_gmime=0
     errors=$((errors + 1))
 fi
 
     have_gmime=0
     errors=$((errors + 1))
 fi
 

+printf "Checking for talloc development files... "

 if pkg-config --modversion talloc > /dev/null 2>&1; then
 if pkg-config --modversion talloc > /dev/null 2>&1; then

-    echo "Checking for talloc development files... Yes."
+    printf "Yes.\n"

     have_talloc=1
     have_talloc=1

+    talloc_cflags=$(pkg-config --cflags talloc)
+    talloc_ldflags=$(pkg-config --libs talloc)

 else
 else

-    echo "Checking for talloc development files... No."
+    printf "No.\n"

     have_talloc=0
     have_talloc=0

+    talloc_cflags=

     errors=$((errors + 1))
 fi
 
     errors=$((errors + 1))
 fi
 

+printf "Checking for valgrind development files... "
+if pkg-config --modversion valgrind > /dev/null 2>&1; then
+    printf "Yes.\n"
+    have_valgrind=1
+    valgrind_cflags=$(pkg-config --cflags valgrind)
+else
+    printf "No (but that's fine).\n"
+    have_valgrind=0
+fi
+
+if pkg-config --modversion emacs > /dev/null 2>&1; then
+    emacs_lispdir=$(pkg-config emacs --variable sitepkglispdir)
+else
+    emacs_lispdir='$(prefix)/share/emacs/site-lisp'
+fi
+

 if [ $errors -gt 0 ]; then
     cat <<EOF
 
 if [ $errors -gt 0 ]; then
     cat <<EOF
 


@@ -87,17 +118,17 @@ package names may be different, (such as "devel" in place of "dev").
 EOF
     if [ $have_pkg_config -eq 0 ]; then
 cat <<EOF
 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
 
 But if pkg-config is not available for your system, then you will need
 
        sudo apt-get install pkg-config
 
 But if pkg-config is not available for your system, then you will need

-to manually edit the notmuch Makefile to set NOTMUCH_CFLAGS and
-NOTMUCH_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
 
 EOF
     fi


@@ -108,7 +139,19 @@ configure again to ensure the packages can be found, or simply run
 
 EOF
     exit 1
 
 EOF
     exit 1

+fi
+
+printf "Checking for getline... "
+if ${CC} -o config/have_getline config/have_getline.c > /dev/null 2>&1
+then
+    printf "Yes.\n"
+    have_getline=1

 else
 else

+    printf "No (will use our own instead).\n"
+    have_getline=0
+fi
+rm -f config/have_getline
+

 cat <<EOF
 
 All required packages were found. You may now run the following
 cat <<EOF
 
 All required packages were found. You may now run the following


@@ -118,6 +161,56 @@ commands to compile and install notmuch:
        sudo make install
 
 EOF
        sudo make install
 
 EOF

-    exit 0
-fi
-cat <<EOF
+
+# construct the Makefile.config
+cat > Makefile.config <<EOF
+# 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 = ${CXX}
+
+# The prefix to which notmuch should be installed
+prefix = /usr/local
+
+# The directory to which emacs lisp files should be installed
+emacs_lispdir=${emacs_lispdir}
+
+# Whether the getline function is available (if not, then notmuch will
+# build its own version)
+HAVE_GETLINE = ${have_getline}
+
+# 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 linke against talloc
+TALLOC_CFLAGS = ${talloc_cflags}
+TALLOC_LDFLAGS = ${talloc_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
+override CFLAGS += -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS)      \\
+                  \$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND)   \\
+                  \$(VALGRIND_CFLAGS)
+override CXXFLAGS += -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS)    \\
+                    \$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND) \\
+                    \$(VALGRIND_CFLAGS) \$(XAPIAN_CXXFLAGS)
+override LDFLAGS += \$(GMIME_LDFLAGS) \$(TALLOC_LDFLAGS) \$(XAPIAN_LDFLAGS)
+EOF