diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bae3c4b..e0d7936 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
       - name: autogen
         run: ./autogen.sh
       - name: configure
-        run: ./configure ${{matrix.assert}} ${{matrix.guard}} CC='${{matrix.cc}}' CFLAGS='${{matrix.opt}}'
+        run: ./configure --enable-tests ${{matrix.assert}} ${{matrix.guard}} CC='${{matrix.cc}}' CFLAGS='${{matrix.opt}}'
       - name: make
         run: make
       - name: check
diff --git a/Makefile.am b/Makefile.am
index 2781adf..576c150 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -10,16 +10,18 @@ AM_CFLAGS = \
 
 lib_LIBRARIES = libkernaux.a
 
-TESTS = \
-	examples/assert_guards \
-	examples/assert_simple
-
 noinst_PROGRAMS = $(TESTS)
 
 libkernaux_a_SOURCES = \
 	src/assert.c \
 	src/libc.c
 
+if ENABLE_TESTS
+TESTS = \
+	examples/assert_guards \
+	examples/assert_simple
+endif
+
 if ASM_I386
 libkernaux_a_SOURCES += src/asm/i386.S
 endif
@@ -34,10 +36,12 @@ endif
 
 if WITH_CMDLINE
 libkernaux_a_SOURCES += src/cmdline.c
+if ENABLE_TESTS
 TESTS += \
 	examples/cmdline \
 	tests/test_cmdline
 endif
+endif
 
 if WITH_CONSOLE
 libkernaux_a_SOURCES += src/console.c
@@ -45,8 +49,10 @@ endif
 
 if WITH_ELF
 libkernaux_a_SOURCES += src/elf.c
+if ENABLE_TESTS
 TESTS += tests/test_elf
 endif
+endif
 
 if WITH_FRAMEBUFFER
 libkernaux_a_SOURCES += src/framebuffer.c
@@ -54,13 +60,17 @@ endif
 
 if WITH_ITOA
 libkernaux_a_SOURCES += src/itoa.c
+if ENABLE_TESTS
 TESTS += tests/test_itoa
 endif
+endif
 
 if WITH_MBR
 libkernaux_a_SOURCES += src/mbr.c
+if ENABLE_TESTS
 TESTS += tests/test_mbr
 endif
+endif
 
 if WITH_MULTIBOOT2
 libkernaux_a_SOURCES += \
@@ -71,6 +81,7 @@ libkernaux_a_SOURCES += \
 	src/multiboot2/info_helpers.c \
 	src/multiboot2/info_is_valid.c \
 	src/multiboot2/info_print.c
+if ENABLE_TESTS
 TESTS += \
 	tests/test_multiboot2_header_helpers \
 	tests/test_multiboot2_header_print \
@@ -84,29 +95,36 @@ noinst_PROGRAMS += \
 	tests/multiboot2_info_print1 \
 	tests/multiboot2_info_print2
 endif
+endif
 
 if WITH_PRINTF
 libkernaux_a_SOURCES += src/printf.c
+if ENABLE_TESTS
 TESTS += \
 	examples/printf \
 	examples/printf_va \
 	tests/test_printf
 endif
+endif
 
 if WITH_PFA
 libkernaux_a_SOURCES += src/pfa.c
+if ENABLE_TESTS
 TESTS += \
 	examples/pfa \
 	tests/test_pfa \
 	tests/test_pfa_assert
 endif
+endif
 
 if WITH_UNITS
 libkernaux_a_SOURCES += src/units.c
+if ENABLE_TESTS
 TESTS += \
 	examples/units_human \
 	tests/test_units_human
 endif
+endif
 
 examples_assert_guards_SOURCES = \
 	$(libkernaux_a_SOURCES) \
diff --git a/README.md b/README.md
index 2f530f2..426bb81 100644
--- a/README.md
+++ b/README.md
@@ -120,7 +120,7 @@ environment.
 
 ```
 ./autogen.sh
-./configure --enable-assert --enable-guard
+./configure --enable-tests --enable-assert --enable-guard
 make
 ```
 
@@ -176,15 +176,8 @@ configure: WARNING:     ## -----------------------------------------------------
 checking for stddef.h... no
 ```
 
-When configured with cross-compiler, library can't be build and installed with
-just `make && sudo make install`. Instead use the following commands:
-
-* `make libkernaux.a`
-* `sudo make install-exec install-data`
-
-To install into specific directory use full path:
-`DESTDIR="$(pwd)/dest" make install-exec install-data` instead of
-`DESTDIR=dest make install-exec install-data`.
+To install into specific directory use full path: `DESTDIR="$(pwd)/dest" make
+install` instead of `DESTDIR=dest make install`.
 
 Check if compilation targets i386: `objdump -d src/asm/i386.o`. It should output
 something like this:
diff --git a/config/dev-native b/config/dev-native
index 62238e6..4e454f7 100755
--- a/config/dev-native
+++ b/config/dev-native
@@ -7,4 +7,4 @@ if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
 
 PREFIX="$REPO/dest/dev-native"
 
-"$REPO/configure" --prefix="$PREFIX"
+"$REPO/configure" --prefix="$PREFIX" --enable-tests
diff --git a/config/root-native b/config/root-native
index dfac400..4018f45 100755
--- a/config/root-native
+++ b/config/root-native
@@ -5,4 +5,4 @@ set -e
 REPO="$(realpath "$(dirname "$(realpath "$0")")/..")"
 if [ -f "$REPO/Makefile" ]; then make -C "$REPO" distclean; fi
 
-"$REPO/configure"
+"$REPO/configure" --enable-tests
diff --git a/configure.ac b/configure.ac
index 1bb80a2..d60cdad 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,6 +8,7 @@ AC_INIT([libkernaux],
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([src/pfa.c])
 
+AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 
 
@@ -17,6 +18,7 @@ AC_ARG_ENABLE([assert],      AS_HELP_STRING([--enable-assert],       [enable run
 AC_ARG_ENABLE([guard],       AS_HELP_STRING([--enable-guard],        [enable argument guards]))
 AC_ARG_ENABLE([guard-cond],  AS_HELP_STRING([--enable-guard-cond],   [enable condition guard]))
 AC_ARG_ENABLE([guard-null],  AS_HELP_STRING([--enable-guard-null],   [enable NULL-guard]))
+AC_ARG_ENABLE([tests],       AS_HELP_STRING([--enable-tests],        [enable tests and examples]))
 
 dnl Packages (enabled by default)
 AC_ARG_WITH(  [cmdline],     AS_HELP_STRING([--without-cmdline],     [without command line parser]))
@@ -53,6 +55,10 @@ if test -z "$with_libc_strlen"; then with_libc_strlen=yes; fi
 ])
 AS_IF([test "$with_libc" = yes], do_with_libc)
 
+
+
+AS_IF([test "$host_cpu" != "$build_cpu" -a "$enable_tests" = yes], AC_MSG_ERROR([can not build cross-platform tests]))
+
 AS_IF([test "$with_itoa" = no -a "$with_printf" != no], AC_MSG_ERROR([package `printf' requires package `itoa']))
 AS_IF([test "$with_itoa" = no -a "$with_units"  != no], AC_MSG_ERROR([package `units' requires package `itoa']))
 
@@ -67,6 +73,7 @@ dnl Features (disabled by default)
 AM_CONDITIONAL([ENABLE_ASSERT],     [test "$enable_assert"     = yes])
 AM_CONDITIONAL([ENABLE_GUARD_COND], [test "$enable_guard_cond" = yes])
 AM_CONDITIONAL([ENABLE_GUARD_NULL], [test "$enable_guard_null" = yes])
+AM_CONDITIONAL([ENABLE_TESTS],      [test "$enable_tests"      = yes])
 
 dnl Packages (enabled by default)
 AM_CONDITIONAL([WITH_CMDLINE],      [test "$with_cmdline"      != no])
@@ -96,6 +103,7 @@ dnl Features (disabled by default)
 AS_IF([test "$enable_assert"      = yes], [AC_DEFINE([KERNAUX_ENABLE_ASSERT],     [1], [enabled runtime assertions])])
 AS_IF([test "$enable_guard_cond"  = yes], [AC_DEFINE([KERNAUX_ENABLE_GUARD_COND], [1], [enabled condition guard])])
 AS_IF([test "$enable_guard_null"  = yes], [AC_DEFINE([KERNAUX_ENABLE_GUARD_NULL], [1], [enabled NULL-guard])])
+AS_IF([test "$enable_tests"       = yes], [AC_DEFINE([ENABLE_TESTS],              [1], [enabled tests and examples])])
 
 dnl Packages (enabled by default)
 AS_IF([test "$with_cmdline"       != no], [AC_DEFINE([WITH_CMDLINE],              [1], [with command line parser])])