diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 84 |
1 files changed, 67 insertions, 17 deletions
diff --git a/configure.ac b/configure.ac index f5b1614f19f1..8bc14d476d57 100644 --- a/configure.ac +++ b/configure.ac @@ -1,9 +1,23 @@ AC_INIT(nix, m4_esyscmd([bash -c "echo -n $(cat ./.version)$VERSION_SUFFIX"])) +AC_CONFIG_MACRO_DIRS([m4]) AC_CONFIG_SRCDIR(README.md) AC_CONFIG_AUX_DIR(config) AC_PROG_SED +# Detect building from release tarballs (we need less dependencies then) +# by checking for the `.dist-files` file present only in release tarballs +# (created in release.nix). +# For example, we don't need to build the manual or run bison/flex +# parser generators for release tarballs, as those have them pre-generated. +AC_MSG_CHECKING([whether we are building from a release tarball (.dist-files existence)]) +if test -f .dist-files; then + AC_MSG_RESULT(yes; will not require tools that are not needed for building from release tarballs) + building_from_release_tarball=yes; +else + AC_MSG_RESULT(no) +fi + # Construct a Nix system name (like "i686-linux"). AC_CANONICAL_HOST AC_MSG_CHECKING([for the canonical Nix system name]) @@ -42,27 +56,21 @@ esac AC_MSG_RESULT($system) AC_SUBST(system) -AC_DEFINE_UNQUOTED(SYSTEM, ["$system"], [platform identifier (`cpu-os')]) +AC_DEFINE_UNQUOTED(SYSTEM, ["$system"], [platform identifier ('cpu-os')]) # State should be stored in /nix/var, unless the user overrides it explicitly. test "$localstatedir" = '${prefix}/var' && localstatedir=/nix/var -# Solaris-specific stuff. -AC_STRUCT_DIRENT_D_TYPE -if test "$sys_name" = sunos; then - # Solaris requires -lsocket -lnsl for network functions - LIBS="-lsocket -lnsl $LIBS" -fi - - -CFLAGS= -CXXFLAGS= +# Set default flags for nix (as per AC_PROG_CC/CXX docs), +# while still allowing the user to override them from the command line. +: ${CFLAGS="-O3"} +: ${CXXFLAGS="-O3"} AC_PROG_CC AC_PROG_CXX AC_PROG_CPP -AX_CXX_COMPILE_STDCXX_17 +AX_CXX_COMPILE_STDCXX_17([noext], [mandatory]) AC_CHECK_TOOL([AR], [ar]) @@ -70,6 +78,14 @@ AC_CHECK_TOOL([AR], [ar]) AC_SYS_LARGEFILE +# Solaris-specific stuff. +AC_STRUCT_DIRENT_D_TYPE +if test "$sys_name" = sunos; then + # Solaris requires -lsocket -lnsl for network functions + LIBS="-lsocket -lnsl $LIBS" +fi + + # Check for pubsetbuf. AC_MSG_CHECKING([for pubsetbuf]) AC_LANG_PUSH(C++) @@ -118,10 +134,11 @@ fi NEED_PROG(bash, bash) NEED_PROG(patch, patch) -AC_PATH_PROG(xmllint, xmllint, false) -AC_PATH_PROG(xsltproc, xsltproc, false) -AC_PATH_PROG(flex, flex, false) -AC_PATH_PROG(bison, bison, false) +if test "x$building_from_release_tarball" != x"yes"; then + # Parser generators are pre-built in release tarballs. + NEED_PROG(flex, flex) + NEED_PROG(bison, bison) +fi NEED_PROG(sed, sed) NEED_PROG(tar, tar) NEED_PROG(bzip2, bzip2) @@ -145,6 +162,16 @@ AC_ARG_WITH(store-dir, AC_HELP_STRING([--with-store-dir=PATH], AC_SUBST(storedir) +# Look for boost, a required dependency. +# Note that AX_BOOST_BASE only exports *CPP* BOOST_CPPFLAGS, no CXX flags, +# and CPPFLAGS are not passed to the C++ compiler automatically. +# Thus we append the returned CPPFLAGS to the CXXFLAGS here. +AX_BOOST_BASE([1.66], [CXXFLAGS="$BOOST_CPPFLAGS $CXXFLAGS"], [AC_MSG_ERROR([Nix requires boost.])]) +# For unknown reasons, setting this directly in the ACTION-IF-FOUND above +# ends up with LDFLAGS being empty, so we set it afterwards. +LDFLAGS="$BOOST_LDFLAGS $LDFLAGS" + + # Look for OpenSSL, a required dependency. PKG_CHECK_MODULES([OPENSSL], [libcrypto], [CXXFLAGS="$OPENSSL_CFLAGS $CXXFLAGS"]) @@ -164,7 +191,16 @@ PKG_CHECK_MODULES([SQLITE3], [sqlite3 >= 3.6.19], [CXXFLAGS="$SQLITE3_CFLAGS $CX PKG_CHECK_MODULES([LIBCURL], [libcurl], [CXXFLAGS="$LIBCURL_CFLAGS $CXXFLAGS"]) # Look for editline, a required dependency. -PKG_CHECK_MODULES([EDITLINE], [libeditline], [CXXFLAGS="$EDITLINE_CFLAGS $CXXFLAGS"]) +# The the libeditline.pc file was added only in libeditline >= 1.15.2, +# see https://github.com/troglobit/editline/commit/0a8f2ef4203c3a4a4726b9dd1336869cd0da8607, +# but e.g. Ubuntu 16.04 has an older version, so we fall back to searching for +# editline.h when the pkg-config approach fails. +PKG_CHECK_MODULES([EDITLINE], [libeditline], [CXXFLAGS="$EDITLINE_CFLAGS $CXXFLAGS"], [ + AC_CHECK_HEADERS([editline.h], [true], + [AC_MSG_ERROR([Nix requires libeditline; it was found neither via pkg-config nor its normal header.])]) + AC_SEARCH_LIBS([readline read_history], [editline], [], + [AC_MSG_ERROR([Nix requires libeditline; it was not found via pkg-config, but via its header, but required functions do not work. Maybe it is too old? >= 1.14 is required.])]) +]) # Look for libsodium, an optional dependency. PKG_CHECK_MODULES([SODIUM], [libsodium], @@ -236,6 +272,20 @@ AC_ARG_ENABLE(doc-gen, AC_HELP_STRING([--disable-doc-gen], doc_generate=$enableval, doc_generate=yes) AC_SUBST(doc_generate) +# The manual is pre-generated in release tarballs. +if test "$doc_generate" = yes && test "x$building_from_release_tarball" != x"yes"; then + # Programs required to build the manual + NEED_PROG(xmllint, xmllint) + NEED_PROG(xsltproc, xsltproc) + + # Check if docbook works without Internet (if not, likely packages providing the .xsl files are not installed) + AC_MSG_CHECKING([if docbook can run without networking]) + if "$xsltproc" --nonet --novalid http://docbook.sourceforge.net/release/xsl-ns/current/profiling/profile.xsl >&AS_MESSAGE_LOG_FD 2>&1; then + AC_MSG_RESULT(yes) + else + AC_MSG_FAILURE([Building the manual requires 'xsltproc --nonet' to work. It did not. Perhaps you lack the necessary xsl files (e.g. package docbook-xsl-ns on Debian)?]) + fi +fi # Setuid installations. AC_CHECK_FUNCS([setresuid setreuid lchown]) |