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-rw-r--r--.gitignore7
-rw-r--r--Makefile.am2
-rw-r--r--configure.ac84
-rw-r--r--doc/manual/installation.xml47
-rw-r--r--externals/Makefile.am67
-rw-r--r--release.nix17
-rw-r--r--src/bsdiff-4.3/Makefile.am6
-rw-r--r--src/libstore/Makefile.am4
-rw-r--r--src/libutil/Makefile.am4
-rw-r--r--substitute.mk3
-rw-r--r--tests/common.sh.in5
-rw-r--r--tests/init.sh1
12 files changed, 66 insertions, 181 deletions
diff --git a/.gitignore b/.gitignore
index c929c8ecef..d7f151507f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,13 +43,6 @@ Makefile.in
 /doc/manual/NEWS.html
 /doc/manual/NEWS.txt
 
-# /externals/
-/externals/bzip2-*
-/externals/build-bzip2
-/externals/inst-bzip2
-/externals/sqlite-*
-/externals/build-sqlite
-
 # /scripts/
 /scripts/nix-profile.sh
 /scripts/nix-pull
diff --git a/Makefile.am b/Makefile.am
index b946b1e362..4bbd952b98 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,4 @@
-SUBDIRS = externals src perl scripts corepkgs doc misc tests
+SUBDIRS = src perl scripts corepkgs doc misc tests
 EXTRA_DIST = substitute.mk nix.spec nix.spec.in bootstrap.sh \
   nix.conf.example NEWS version
 
diff --git a/configure.ac b/configure.ac
index 29fdfdb36f..0e460ff3ef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -167,14 +167,11 @@ AC_PATH_PROG(bison, bison, false)
 NEED_PROG(perl, perl)
 NEED_PROG(sed, sed)
 NEED_PROG(tar, tar)
+NEED_PROG(bzip2, bzip2)
 AC_PATH_PROG(dot, dot)
 AC_PATH_PROG(dblatex, dblatex)
 AC_PATH_PROG(gzip, gzip)
 
-AC_PATH_PROG(openssl_prog, openssl, openssl) # if not found, call openssl in $PATH
-AC_SUBST(openssl_prog)
-AC_DEFINE_UNQUOTED(OPENSSL_PATH, ["$openssl_prog"], [Path of the OpenSSL binary])
-
 
 # Test that Perl has the open/fork feature (Perl 5.8.0 and beyond).
 AC_MSG_CHECKING([whether Perl is recent enough])
@@ -224,63 +221,27 @@ AC_ARG_WITH(store-dir, AC_HELP_STRING([--with-store-dir=PATH],
 AC_SUBST(storedir)
 
 
-AC_ARG_WITH(openssl, AC_HELP_STRING([--with-openssl=PATH],
-  [prefix of the OpenSSL library]),
-  openssl=$withval, openssl=)
-AM_CONDITIONAL(HAVE_OPENSSL, test -n "$openssl")
-if test -n "$openssl"; then
-  LDFLAGS="-L$openssl/lib -lcrypto $LDFLAGS"
-  CFLAGS="-I$openssl/include $CFLAGS"
-  CXXFLAGS="-I$openssl/include $CXXFLAGS"
-  AC_DEFINE(HAVE_OPENSSL, 1, [Whether to use OpenSSL.])
-fi
+# Look for OpenSSL, an optional dependency.
+AC_PATH_PROG(openssl_prog, openssl, openssl) # if not found, call openssl in $PATH
+AC_SUBST(openssl_prog)
+AC_DEFINE_UNQUOTED(OPENSSL_PATH, ["$openssl_prog"], [Path of the OpenSSL binary])
 
+PKG_CHECK_MODULES([OPENSSL], [libcrypto],
+  [AC_DEFINE([HAVE_OPENSSL], [1], [Whether to use OpenSSL.])
+   CXXFLAGS="$OPENSSL_CFLAGS $CXXFLAGS"
+   have_openssl=1], [])
+AM_CONDITIONAL(HAVE_OPENSSL, test "$have_openssl" = 1)
 
-AC_ARG_WITH(bzip2, AC_HELP_STRING([--with-bzip2=PATH],
-  [prefix of bzip2]),
-  bzip2=$withval, bzip2=)
-AM_CONDITIONAL(HAVE_BZIP2, test -n "$bzip2")
-ATERM_VERSION=2.5
-AC_SUBST(ATERM_VERSION)
-if test -z "$bzip2"; then
-  # Headers and libraries will be used from the temporary installation
-  # in externals/inst-bzip2.
-  bzip2_lib='-L${top_builddir}/externals/inst-bzip2/lib -lbz2'
-  bzip2_include='-I${top_builddir}/externals/inst-bzip2/include'
-  # The binary will be copied to $libexecdir.
-  bzip2_bin='${libexecdir}/nix'
-  # But for testing, we have to use the temporary copy :-(
-  bzip2_bin_test='${top_builddir}/externals/inst-bzip2/bin'
-else
-  bzip2_lib="-L$bzip2/lib -lbz2"
-  bzip2_include="-I$bzip2/include"
-  bzip2_bin="$bzip2/bin"
-  bzip2_bin_test="$bzip2/bin"
-fi
-AC_SUBST(bzip2_lib)
-AC_SUBST(bzip2_include)
-AC_SUBST(bzip2_bin)
-AC_SUBST(bzip2_bin_test)
-
-
-AC_ARG_WITH(sqlite, AC_HELP_STRING([--with-sqlite=PATH],
-  [prefix of SQLite]),
-  sqlite=$withval, sqlite=)
-AM_CONDITIONAL(HAVE_SQLITE, test -n "$sqlite")
-SQLITE_VERSION=3070900
-AC_SUBST(SQLITE_VERSION)
-if test -z "$sqlite"; then
-  sqlite_lib='${top_builddir}/externals/sqlite-autoconf-$(SQLITE_VERSION)/libsqlite3.la'
-  sqlite_include='-I${top_builddir}/externals/sqlite-autoconf-$(SQLITE_VERSION)'
-  sqlite_bin='${top_builddir}/externals/sqlite-autoconf-$(SQLITE_VERSION)'
-else
-  sqlite_lib="-L$sqlite/lib -lsqlite3"
-  sqlite_include="-I$sqlite/include"
-  sqlite_bin="$sqlite/bin"
-fi
-AC_SUBST(sqlite_lib)
-AC_SUBST(sqlite_include)
-AC_SUBST(sqlite_bin)
+
+# Look for libbz2, a required dependency.
+AC_CHECK_LIB([bz2], [BZ2_bzWriteOpen], [true],
+  [AC_MSG_ERROR([Nix requires libbz2, which is part of bzip2.  See http://www.bzip.org/.])])
+AC_CHECK_HEADERS([bzlib.h], [true],
+  [AC_MSG_ERROR([Nix requires libbz2, which is part of bzip2.  See http://www.bzip.org/.])])
+
+
+# Look for SQLite, a required dependency.
+PKG_CHECK_MODULES([SQLITE3], [sqlite3], [CXXFLAGS="$SQLITE3_CFLAGS $CXXFLAGS"])
 
 
 # Whether to use the Boehm garbage collector.
@@ -329,8 +290,8 @@ AC_CHECK_FUNCS([setresuid setreuid lchown])
 AC_CHECK_FUNCS([strsignal posix_fallocate nanosleep sysconf])
 
 
-# This is needed if ATerm or bzip2 are static libraries,
-# and the Nix libraries are dynamic.
+# This is needed if bzip2 is a static library, and the Nix libraries
+# are dynamic.
 if test "$(uname)" = "Darwin"; then
     LDFLAGS="-all_load $LDFLAGS"
 fi
@@ -343,7 +304,6 @@ AC_SUBST(dynlib_suffix)
 
 AM_CONFIG_HEADER([config.h])
 AC_CONFIG_FILES([Makefile
-   externals/Makefile
    src/Makefile
    src/bin2c/Makefile
    src/boost/Makefile
diff --git a/doc/manual/installation.xml b/doc/manual/installation.xml
index 755f539070..15c156dab5 100644
--- a/doc/manual/installation.xml
+++ b/doc/manual/installation.xml
@@ -69,7 +69,36 @@ from source</emphasis>.  Binary releases (e.g., RPMs) have no
 prerequisites.</para>
 
 <para>A fairly recent version of GCC/G++ is required.  Version 2.95
-and higher should work.</para>
+and higher should work.  Clang will also work.</para>
+
+<para>Nix requires Perl, version 5.8 or higher.</para>
+
+<para>Nix requires <command>pkg-config</command> to locate its
+dependencies.  If your distribution does not provide it, you can get
+it from <link
+xlink:href="http://www.freedesktop.org/wiki/Software/pkg-config"
+/>.</para>
+
+<para>Nix requires the bzip2 compressor program and the
+<literal>libbz2</literal> library.  Thus you must have bzip2
+installed, including development headers and libraries.  If your
+distribution does not provide these, you can obtain bzip2 from <link
+xlink:href="http://www.bzip.org/"/>.</para>
+
+<para>Nix requires the SQLite embedded database library.  If your
+distribution does not provide it, please install it from <link
+xlink:href="http://www.sqlite.org/" />.</para>
+
+<para>Nix requires the Perl DBI and DBD::SQLite libraries, which are
+available from <link xlink:href="http://search.cpan.org/">CPAN</link>
+if your distribution does not provide them.</para>
+
+<para>Nix can optionally use the <link
+xlink:href="http://www.hpl.hp.com/personal/Hans_Boehm/gc/">Boehm
+garbage collector</link> to reduce the evaluator’s memory consumption.
+To enable it, install <literal>pkgconfig</literal> and the Boehm
+garbage collector, and pass the flag <option>--enable-gc</option> to
+<command>configure</command>.</para>
 
 <para>To build this manual and the man-pages you need the
 <command>xmllint</command> and <command>xsltproc</command> programs,
@@ -96,22 +125,6 @@ ubiquitous 2.5.4a won't.  Note that these are only required if you
 modify the parser or when you are building from the Subversion
 repository.</para>
 
-<para>Nix uses the bzip2 compressor (including the bzip2 library).  It
-is included in the Nix source distribution.  If you build from the
-Subversion repository, you must download it yourself and place it in
-the <filename>externals/</filename> directory.  See
-<filename>externals/Makefile.am</filename> for the precise URLs of
-this packages.  Alternatively, if you already have it installed, you
-can use <command>configure</command>'s <option>--with-bzip2</option>
-options to point to their respective locations.</para>
-
-<para>Nix can optionally use the <link
-xlink:href="http://www.hpl.hp.com/personal/Hans_Boehm/gc/">Boehm
-garbage collector</link> to reduce the evaluator’s memory consumption.
-To enable it, install <literal>pkgconfig</literal> and the Boehm
-garbage collector, and pass the flag <option>--enable-gc</option> to
-<command>configure</command>.</para>
-
 </section>
 
 
diff --git a/externals/Makefile.am b/externals/Makefile.am
deleted file mode 100644
index 80c1548bbf..0000000000
--- a/externals/Makefile.am
+++ /dev/null
@@ -1,67 +0,0 @@
-# bzip2
-
-BZIP2 = bzip2-1.0.6
-
-$(BZIP2).tar.gz:
-	@echo "Nix requires bzip2 to build."
-	@echo "Please download version 1.0.6 from"
-	@echo "  http://www.bzip.org/1.0.6/bzip2-1.0.6.tar.gz"
-	@echo "and place it in the externals/ directory."
-	false
-
-$(BZIP2): $(BZIP2).tar.gz
-	gunzip < $(srcdir)/$(BZIP2).tar.gz | tar xvf -
-
-if HAVE_BZIP2
-build-bzip2:
-else
-build-bzip2: $(BZIP2)
-	(cd $(BZIP2) && \
-	$(MAKE) CC="$(CC)" && \
-	$(MAKE) install PREFIX=$(abs_builddir)/inst-bzip2)
-	touch build-bzip2
-
-install-exec-local:: build-bzip2
-	mkdir -p $(DESTDIR)${bzip2_bin}
-	$(INSTALL_PROGRAM) $(bzip2_bin_test)/bzip2 $(DESTDIR)${bzip2_bin}
-endif
-
-
-# SQLite
-
-SQLITE = sqlite-autoconf-$(SQLITE_VERSION)
-SQLITE_TAR = sqlite-autoconf-$(SQLITE_VERSION).tar.gz
-
-$(SQLITE_TAR):
-	@echo "Nix requires the SQLite library to build."
-	@echo "Please download version $(SQLITE_VERSION) from"
-	@echo "  http://www.sqlite.org/$(SQLITE_TAR)"
-	@echo "and place it in the externals/ directory."
-	false
-
-$(SQLITE): $(SQLITE_TAR)
-	gzip -d < $(srcdir)/$(SQLITE_TAR) | tar xvf -
-
-if HAVE_SQLITE
-build-sqlite:
-else
-build-sqlite: $(SQLITE)
-	(cd $(SQLITE) && \
-	CC="$(CC)" CFLAGS="-DSQLITE_ENABLE_COLUMN_METADATA=1" ./configure --disable-static --prefix=$(pkglibdir)/dummy --libdir=${pkglibdir} $(SUB_CONFIGURE_FLAGS) && \
-	$(MAKE) )
-	touch build-sqlite
-
-install-exec-local:: build-sqlite
-	cd $(SQLITE) && $(MAKE) install
-	rm -rf "$(DESTDIR)/$(pkglibdir)/dummy"
-endif
-
-
-all: build-bzip2 build-sqlite
-
-EXTRA_DIST = $(BZIP2).tar.gz $(SQLITE_TAR)
-
-clean:
-	$(RM) -f build-bzip2 build-sqlite
-	$(RM) -rf $(BZIP2) $(SQLITE)
-	$(RM) -rf inst-bzip2
diff --git a/release.nix b/release.nix
index 953211f0e9..cc17bf552c 100644
--- a/release.nix
+++ b/release.nix
@@ -20,7 +20,7 @@ let
 
         buildInputs =
           [ curl bison24 flex2535 perl libxml2 libxslt w3m bzip2
-            tetex dblatex nukeReferences pkgconfig git
+            tetex dblatex nukeReferences pkgconfig sqlite git
           ];
 
         configureFlags = ''
@@ -33,17 +33,10 @@ let
 
         postUnpack = ''
           # Clean up when building from a working tree.
-          (cd $sourceRoot && (git ls-files -o | xargs rm -v))
+          (cd $sourceRoot && (git ls-files -o | xargs -r rm -v))
         '';
 
-        # Include the Bzip2 tarball in the distribution.
         preConfigure = ''
-          stripHash ${bzip2.src}
-          cp -pv ${bzip2.src} externals/$strippedName
-
-          stripHash ${sqlite.src}
-          cp -pv ${sqlite.src} externals/$strippedName
-
           # TeX needs a writable font cache.
           export VARTEXFONTS=$TMPDIR/texfonts
         '';
@@ -78,11 +71,10 @@ let
         name = "nix";
         src = tarball;
 
-        buildInputs = [ curl perl bzip2 openssl pkgconfig boehmgc ];
+        buildInputs = [ curl perl bzip2 openssl pkgconfig sqlite boehmgc ];
 
         configureFlags = ''
           --disable-init-state
-          --with-bzip2=${bzip2} --with-sqlite=${sqlite}
           --with-dbi=${perlPackages.DBI}/lib/perl5/site_perl
           --with-dbd-sqlite=${perlPackages.DBDSQLite}/lib/perl5/site_perl
           --enable-gc
@@ -98,14 +90,13 @@ let
         src = tarball;
 
         buildInputs =
-          [ curl perl bzip2 openssl
+          [ curl perl bzip2 openssl pkgconfig sqlite
             # These are for "make check" only:
             graphviz libxml2 libxslt
           ];
 
         configureFlags = ''
           --disable-init-state
-          --with-bzip2=${bzip2} --with-sqlite=${sqlite}
           --with-dbi=${perlPackages.DBI}/lib/perl5/site_perl
           --with-dbd-sqlite=${perlPackages.DBDSQLite}/lib/perl5/site_perl
         '';
diff --git a/src/bsdiff-4.3/Makefile.am b/src/bsdiff-4.3/Makefile.am
index 57970bc55c..62315333a7 100644
--- a/src/bsdiff-4.3/Makefile.am
+++ b/src/bsdiff-4.3/Makefile.am
@@ -4,10 +4,10 @@ libexec_PROGRAMS = bsdiff bspatch
 
 bsdiff_SOURCES = bsdiff.c
 
-bsdiff_LDADD = ${bzip2_lib}
+bsdiff_LDADD = -lbz2
 
 bspatch_SOURCES = bspatch.c
 
-bspatch_LDADD = ${bzip2_lib}
+bspatch_LDADD = -lbz2
 
-AM_CFLAGS = -O3 ${bzip2_include} ${bsddiff_compat_include}
+AM_CFLAGS = -O3 ${bsddiff_compat_include}
diff --git a/src/libstore/Makefile.am b/src/libstore/Makefile.am
index 39a61233b4..a9e5732e21 100644
--- a/src/libstore/Makefile.am
+++ b/src/libstore/Makefile.am
@@ -10,12 +10,12 @@ pkginclude_HEADERS = \
   globals.hh references.hh pathlocks.hh \
   worker-protocol.hh
 
-libstore_la_LIBADD = ../libutil/libutil.la ../boost/format/libformat.la ${aterm_lib} ${sqlite_lib}
+libstore_la_LIBADD = ../libutil/libutil.la ../boost/format/libformat.la @SQLITE3_LIBS@
 
 EXTRA_DIST = schema.sql
 
 AM_CXXFLAGS = -Wall \
- ${sqlite_include} -I$(srcdir)/.. -I$(srcdir)/../libutil \
+ -I$(srcdir)/.. -I$(srcdir)/../libutil \
  -DNIX_STORE_DIR=\"$(storedir)\" \
  -DNIX_DATA_DIR=\"$(datadir)\" \
  -DNIX_STATE_DIR=\"$(localstatedir)/nix\" \
diff --git a/src/libutil/Makefile.am b/src/libutil/Makefile.am
index a326060cfe..4a3523f3be 100644
--- a/src/libutil/Makefile.am
+++ b/src/libutil/Makefile.am
@@ -3,7 +3,7 @@ pkglib_LTLIBRARIES = libutil.la
 libutil_la_SOURCES = util.cc hash.cc serialise.cc \
   archive.cc xml-writer.cc immutable.cc
 
-libutil_la_LIBADD = ../boost/format/libformat.la ${aterm_lib} ${sqlite_lib}
+libutil_la_LIBADD = ../boost/format/libformat.la
 
 pkginclude_HEADERS = util.hh hash.hh serialise.hh \
   archive.hh xml-writer.hh types.hh immutable.hh
@@ -11,6 +11,8 @@ pkginclude_HEADERS = util.hh hash.hh serialise.hh \
 if !HAVE_OPENSSL
 libutil_la_SOURCES += \
  md5.c md5.h sha1.c sha1.h sha256.c sha256.h md32_common.h
+else
+libutil_la_LIBADD += @OPENSSL_LIBS@
 endif
 
 AM_CXXFLAGS = -Wall -I$(srcdir)/..
diff --git a/substitute.mk b/substitute.mk
index 96fc16bf5b..3f2f367ff0 100644
--- a/substitute.mk
+++ b/substitute.mk
@@ -14,8 +14,7 @@
 	 -e "s^@system\@^$(system)^g" \
 	 -e "s^@shell\@^$(bash)^g" \
 	 -e "s^@curl\@^$(curl)^g" \
-	 -e "s^@bzip2\@^$(bzip2_bin)/bzip2^g" \
-	 -e "s^@bzip2_bin_test\@^$(bzip2_bin_test)^g" \
+	 -e "s^@bzip2\@^$(bzip2)^g" \
 	 -e "s^@perl\@^$(perl)^g" \
 	 -e "s^@perlFlags\@^$(perlFlags)^g" \
 	 -e "s^@coreutils\@^$(coreutils)^g" \
diff --git a/tests/common.sh.in b/tests/common.sh.in
index 5619580a72..316562f67b 100644
--- a/tests/common.sh.in
+++ b/tests/common.sh.in
@@ -29,15 +29,10 @@ export PATH=$NIX_BIN_DIR:$TOP/scripts:$PATH
 export NIX_BUILD_HOOK=
 export PERL=perl
 export PERL5LIB=$TOP/perl/lib:$PERL5LIB
-export NIX_BZIP2="@bzip2_bin_test@/bzip2"
-if test "${NIX_BZIP2:0:1}" != "/"; then
-    NIX_BZIP2=`pwd`/${NIX_BZIP2}
-fi
 export dot=@dot@
 export xmllint="@xmllint@"
 export xmlflags="@xmlflags@"
 export xsltproc="@xsltproc@"
-export sqlite3="@sqlite_bin@/bin/sqlite3"
 export SHELL="@shell@"
 
 export version=@version@
diff --git a/tests/init.sh b/tests/init.sh
index 4296f43b61..777f95f779 100644
--- a/tests/init.sh
+++ b/tests/init.sh
@@ -28,7 +28,6 @@ ln -s $TOP/scripts/nix-prefetch-url $NIX_BIN_DIR/
 ln -s $TOP/scripts/nix-build $NIX_BIN_DIR/
 ln -s $TOP/scripts/nix-pull $NIX_BIN_DIR/
 mkdir -p $NIX_BIN_DIR/nix/substituters
-ln -s $NIX_BZIP2 $NIX_BIN_DIR/nix/
 ln -s $TOP/scripts/copy-from-other-stores.pl $NIX_BIN_DIR/nix/substituters
 
 cat > "$NIX_CONF_DIR"/nix.conf <<EOF
generated by cgit-pink 1.4.1 (git 2.44.2) at 2024-07-13T12·50+0000