diff --git a/Makefile.am b/Makefile.am
index 576c150..06ede9a 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -97,16 +97,6 @@ noinst_PROGRAMS += \
 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
@@ -117,6 +107,16 @@ TESTS += \
 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_UNITS
 libkernaux_a_SOURCES += src/units.c
 if ENABLE_TESTS
diff --git a/include/Makefile.am b/include/Makefile.am
index a0de55a..98c7c1b 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1,20 +1,49 @@
+## TODO: <kernaux/libc.h> and <kernaux/console.h> are partially conditional
 nobase_include_HEADERS = \
 	kernaux.h \
 	kernaux/arch/i386.h \
 	kernaux/arch/riscv64.h \
 	kernaux/arch/x86_64.h \
-	kernaux/asm/i386.h \
-	kernaux/asm/riscv64.h \
-	kernaux/asm/x86_64.h \
 	kernaux/assert.h \
-	kernaux/cmdline.h \
-	kernaux/console.h \
-	kernaux/elf.h \
-	kernaux/framebuffer.h \
-	kernaux/itoa.h \
-	kernaux/libc.h \
-	kernaux/mbr.h \
-	kernaux/multiboot2.h \
-	kernaux/pfa.h \
-	kernaux/printf.h \
-	kernaux/units.h
+	kernaux/libc.h
+
+if ASM_I386
+nobase_include_HEADERS += kernaux/asm/i386.h
+endif
+if ASM_RISCV64
+nobase_include_HEADERS += kernaux/asm/riscv64.h
+endif
+if ASM_X86_64
+nobase_include_HEADERS += kernaux/asm/x86_64.h
+endif
+
+if WITH_CMDLINE
+nobase_include_HEADERS += kernaux/cmdline.h
+endif
+if WITH_CONSOLE
+nobase_include_HEADERS += kernaux/console.h
+endif
+if WITH_ELF
+nobase_include_HEADERS += kernaux/elf.h
+endif
+if WITH_FRAMEBUFFER
+nobase_include_HEADERS += kernaux/framebuffer.h
+endif
+if WITH_ITOA
+nobase_include_HEADERS += kernaux/itoa.h
+endif
+if WITH_MBR
+nobase_include_HEADERS += kernaux/mbr.h
+endif
+if WITH_MULTIBOOT2
+nobase_include_HEADERS += kernaux/multiboot2.h
+endif
+if WITH_PFA
+nobase_include_HEADERS += kernaux/pfa.h
+endif
+if WITH_PRINTF
+nobase_include_HEADERS += kernaux/printf.h
+endif
+if WITH_UNITS
+nobase_include_HEADERS += kernaux/units.h
+endif