`configure' configures GNU C Library (see version.h) to adapt to many kinds of systems. Usage: src/glibc/configure [OPTION]... [VAR=VALUE]... To assign environment variables (e.g., CC, CFLAGS...), specify them as VAR=VALUE. See below for descriptions of some of the useful variables. Defaults for the options are specified in brackets. Configuration: -h, --help display this help and exit --help=short display options specific to this package --help=recursive display the short help of all the included packages -V, --version display version information and exit -q, --quiet, --silent do not print `checking ...' messages --cache-file=FILE cache test results in FILE [disabled] -C, --config-cache alias for `--cache-file=config.cache' -n, --no-create do not create output files --srcdir=DIR find the sources in DIR [configure dir or `..'] Installation directories: --prefix=PREFIX install architecture-independent files in PREFIX [/usr/local] --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX [PREFIX] By default, `make install' will install all the files in `/usr/local/bin', `/usr/local/lib' etc. You can specify an installation prefix other than `/usr/local' using `--prefix', for instance `--prefix=$HOME'. For better control, use the options below. Fine tuning of the installation directories: --bindir=DIR user executables [EPREFIX/bin] --sbindir=DIR system admin executables [EPREFIX/sbin] --libexecdir=DIR program executables [EPREFIX/libexec] --sysconfdir=DIR read-only single-machine data [PREFIX/etc] --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com] --localstatedir=DIR modifiable single-machine data [PREFIX/var] --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run] --libdir=DIR object code libraries [EPREFIX/lib] --includedir=DIR C header files [PREFIX/include] --oldincludedir=DIR C header files for non-gcc [/usr/include] --datarootdir=DIR read-only arch.-independent data root [PREFIX/share] --datadir=DIR read-only architecture-independent data [DATAROOTDIR] --infodir=DIR info documentation [DATAROOTDIR/info] --localedir=DIR locale-dependent data [DATAROOTDIR/locale] --mandir=DIR man documentation [DATAROOTDIR/man] --docdir=DIR documentation root [DATAROOTDIR/doc/glibc] --htmldir=DIR html documentation [DOCDIR] --dvidir=DIR dvi documentation [DOCDIR] --pdfdir=DIR pdf documentation [DOCDIR] --psdir=DIR ps documentation [DOCDIR] System types: --build=BUILD configure for building on BUILD [guessed] --host=HOST cross-compile to build programs to run on HOST [BUILD] Optional Features: --disable-option-checking ignore unrecognized --enable/--with options --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no) --enable-FEATURE[=ARG] include FEATURE [ARG=yes] --disable-sanity-checks really do not use threads (should not be used except in special situations) [default=yes] --enable-shared build shared library [default=yes if GNU ld] --enable-profile build profiled library [default=no] --disable-default-pie Do not build glibc programs and the testsuite as PIE [default=no] --disable-timezone-tools do not install timezone tools [default=install] --enable-hardcoded-path-in-tests hardcode newly built glibc path in tests [default=no] --disable-hidden-plt do not hide internal function calls to avoid PLT --enable-bind-now disable lazy relocations in DSOs --enable-stack-protector=[yes|no|all|strong] Use -fstack-protector[-all|-strong] to detect glibc buffer overflows --enable-static-nss build static NSS modules [default=no] --disable-force-install don't force installation of files from this package, even if they are older than the installed files --enable-maintainer-mode enable make rules and dependencies not useful (and sometimes confusing) to the casual installer --enable-kernel=VERSION compile for compatibility with kernel not older than VERSION --disable-werror do not build with -Werror --enable-multi-arch enable single DSO with optimizations for multiple architectures --enable-memory-tagging enable memory tagging if supported by the architecture [default=no] --enable-systemtap enable systemtap static probe points [default=no] --disable-build-nscd disable building and installing the nscd daemon --disable-nscd library functions will not contact the nscd daemon --enable-pt_chown Enable building and installing pt_chown --enable-mathvec Enable building and installing mathvec [default depends on architecture] --enable-cet enable Intel Control-flow Enforcement Technology (CET), x86 only --disable-scv syscalls will not use scv instruction, even if the kernel supports it, powerpc only --enable-fortify-source[=1|2|3] Use -D_FORTIFY_SOURCE=[1|2|3] to control code hardening, defaults to highest possible value supported by the build compiler. Optional Packages: --with-PACKAGE[=ARG] use PACKAGE [ARG=yes] --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no) --with-pkgversion=PKG Use PKG in the version string in place of "GNU libc" --with-bugurl=URL Direct users to URL to report a bug --with-gd=DIR find libgd include dir and library with prefix DIR --with-gd-include=DIR find libgd include files in DIR --with-gd-lib=DIR find libgd library files in DIR --with-binutils=PATH specify location of binutils (as and ld) --with-selinux if building with SELinux support --with-headers=PATH location of system headers to use (for example /usr/src/linux/include) [default=compiler default] --with-nonshared-cflags=CFLAGS build nonshared libraries with additional CFLAGS --with-rtld-early-cflags=CFLAGS build early initialization with additional CFLAGS --with-timeoutfactor=NUM specify an integer to scale the timeout --with-cpu=CPU select code for CPU variant Some influential environment variables: CC C compiler command CFLAGS C compiler flags LDFLAGS linker flags, e.g. -L if you have libraries in a nonstandard directory LIBS libraries to pass to the linker, e.g. -l CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I if you have headers in a nonstandard directory CPP C preprocessor CXX C++ compiler command CXXFLAGS C++ compiler flags Use these variables to override the choices made by `configure' or to help it to find libraries and programs with nonstandard names/locations. 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