diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -91,6 +91,10 @@
     libc.src.stdlib.realloc
     libc.src.stdlib.free
 
+    # stdio.h entrypoints
+    libc.src.stdio.sprintf
+    libc.src.stdio.snprintf
+
     # sys/stat.h entrypoints
     libc.src.sys.stat.mkdir
     libc.src.sys.stat.mkdirat
@@ -242,8 +246,6 @@
     libc.src.stdio.funlockfile
     libc.src.stdio.fwrite
     libc.src.stdio.fwrite_unlocked
-    libc.src.stdio.sprintf
-    libc.src.stdio.snprintf
     libc.src.stdio.fprintf
     libc.src.stdio.printf
     libc.src.stdio.stderr
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -92,6 +92,10 @@
     libc.src.stdlib.aligned_alloc
     libc.src.stdlib.free
 
+    # stdio.h entrypoints
+    libc.src.stdio.sprintf
+    libc.src.stdio.snprintf
+
     # sys/mman.h entrypoints
     libc.src.sys.mman.mmap
     libc.src.sys.mman.munmap
@@ -298,8 +302,6 @@
     libc.src.stdio.funlockfile
     libc.src.stdio.fwrite
     libc.src.stdio.fwrite_unlocked
-    libc.src.stdio.sprintf
-    libc.src.stdio.snprintf
     libc.src.stdio.fprintf
     libc.src.stdio.printf
     libc.src.stdio.stderr
diff --git a/libc/src/CMakeLists.txt b/libc/src/CMakeLists.txt
--- a/libc/src/CMakeLists.txt
+++ b/libc/src/CMakeLists.txt
@@ -7,6 +7,7 @@
 add_subdirectory(math)
 add_subdirectory(string)
 add_subdirectory(stdlib)
+add_subdirectory(stdio)
 
 if(${LIBC_TARGET_OS} STREQUAL "linux")
   add_subdirectory(dirent)
@@ -24,6 +25,5 @@
 # since assert uses the signal API, we disable assert also.
 # add_subdirectory(assert)
 # add_subdirectory(signal)
-add_subdirectory(stdio)
 add_subdirectory(threads)
 add_subdirectory(time)
diff --git a/libc/test/src/CMakeLists.txt b/libc/test/src/CMakeLists.txt
--- a/libc/test/src/CMakeLists.txt
+++ b/libc/test/src/CMakeLists.txt
@@ -34,6 +34,7 @@
 add_subdirectory(math)
 add_subdirectory(string)
 add_subdirectory(stdlib)
+add_subdirectory(stdio)
 
 if(${LIBC_TARGET_OS} STREQUAL "linux")
   add_subdirectory(fcntl)
@@ -50,7 +51,6 @@
 # since assert uses the signal API, we disable assert also.
 # add_subdirectory(assert)
 # add_subdirectory(signal)
-add_subdirectory(stdio)
 add_subdirectory(time)
 
 if(${LIBC_TARGET_OS} STREQUAL "linux")
diff --git a/libc/utils/UnitTest/CMakeLists.txt b/libc/utils/UnitTest/CMakeLists.txt
--- a/libc/utils/UnitTest/CMakeLists.txt
+++ b/libc/utils/UnitTest/CMakeLists.txt
@@ -54,13 +54,6 @@
   libc.src.__support.CPP.array_ref
 )
 
-if(NOT LLVM_LIBC_FULL_BUILD) # TODO(michaelrj): make a more permanant solution.
-  return()
-endif()
-
-#currently stdio is fullbuild only, so this matcher that depends on a piece of
-#printf also has to be fullbuild only.
-
 add_library(
   LibcPrintfHelpers
     PrintfMatcher.h