diff --git a/Makefile b/Makefile
index 4f60d0d8b..d9efc8154 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,9 @@ makefiles = \
   src/libexpr/local.mk \
   src/libcmd/local.mk \
   src/nix/local.mk \
+  src/libutil/c/local.mk \
+  src/libstore/c/local.mk \
+  src/libexpr/c/local.mk \
   src/resolve-system-dependencies/local.mk \
   scripts/local.mk \
   misc/bash/local.mk \
diff --git a/doc/external-api/doxygen.cfg.in b/doc/external-api/doxygen.cfg.in
index 19350b2c6..d78188900 100644
--- a/doc/external-api/doxygen.cfg.in
+++ b/doc/external-api/doxygen.cfg.in
@@ -36,9 +36,9 @@ GENERATE_LATEX         = NO
 # so they can expand variables despite configure variables.
 
 INPUT                  = \
-  src/libutil \
-  src/libexpr \
-  src/libstore
+  src/libutil/c \
+  src/libexpr/c \
+  src/libstore/c
 
 FILE_PATTERNS = nix_api_*.h
 
diff --git a/local.mk b/local.mk
index f48eb63ee..9a1ed50df 100644
--- a/local.mk
+++ b/local.mk
@@ -2,7 +2,7 @@ GLOBAL_CXXFLAGS += -Wno-deprecated-declarations -Werror=switch
 # Allow switch-enum to be overridden for files that do not support it, usually because of dependency headers.
 ERROR_SWITCH_ENUM = -Werror=switch-enum
 
-$(foreach i, config.h $(wildcard src/lib*/*.hh) $(wildcard src/lib*/*.h), \
+$(foreach i, config.h $(wildcard src/lib*/*.hh) $(wildcard src/lib*/*.h $(filter-out %_internal.h, $(wildcard src/lib*/c/*.h))), \
   $(eval $(call install-file-in, $(i), $(includedir)/nix, 0644)))
 
 $(GCH): src/libutil/util.hh config.h
diff --git a/src/libexpr/c/local.mk b/src/libexpr/c/local.mk
new file mode 100644
index 000000000..d2f01c0a9
--- /dev/null
+++ b/src/libexpr/c/local.mk
@@ -0,0 +1,19 @@
+libraries += libexprc
+
+libexprc_NAME = libnixexprc
+
+libexprc_DIR := $(d)
+
+libexprc_SOURCES := \
+  $(wildcard $(d)/*.cc) \
+
+libexprc_CXXFLAGS += -I src/libutil -Isrc/libfetchers -I src/libstore -I src/libstorec -I src/libexpr -I src/libutil/c -I src/libstore/c
+
+libexprc_LIBS = libutil libutilc libstorec libexpr
+
+libexprc_LDFLAGS += -pthread
+
+$(eval $(call install-file-in, $(d)/nix-expr-c.pc, $(libdir)/pkgconfig, 0644))
+
+libexprc_FORCE_INSTALL := 1
+
diff --git a/src/libexpr/c/nix-expr-c.pc.in b/src/libexpr/c/nix-expr-c.pc.in
new file mode 100644
index 000000000..897773f20
--- /dev/null
+++ b/src/libexpr/c/nix-expr-c.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Nix
+Description: Nix Package Manager - C API
+Version: @PACKAGE_VERSION@
+Requires: nix-store-c
+Libs: -L${libdir} -lnixexprc
+Cflags: -I${includedir}/nix
diff --git a/src/libexpr/nix_api_expr.cc b/src/libexpr/c/nix_api_expr.cc
similarity index 100%
rename from src/libexpr/nix_api_expr.cc
rename to src/libexpr/c/nix_api_expr.cc
diff --git a/src/libexpr/nix_api_expr.h b/src/libexpr/c/nix_api_expr.h
similarity index 100%
rename from src/libexpr/nix_api_expr.h
rename to src/libexpr/c/nix_api_expr.h
diff --git a/src/libexpr/nix_api_expr_internal.h b/src/libexpr/c/nix_api_expr_internal.h
similarity index 100%
rename from src/libexpr/nix_api_expr_internal.h
rename to src/libexpr/c/nix_api_expr_internal.h
diff --git a/src/libexpr/nix_api_external.cc b/src/libexpr/c/nix_api_external.cc
similarity index 100%
rename from src/libexpr/nix_api_external.cc
rename to src/libexpr/c/nix_api_external.cc
diff --git a/src/libexpr/nix_api_external.h b/src/libexpr/c/nix_api_external.h
similarity index 100%
rename from src/libexpr/nix_api_external.h
rename to src/libexpr/c/nix_api_external.h
diff --git a/src/libexpr/nix_api_value.cc b/src/libexpr/c/nix_api_value.cc
similarity index 100%
rename from src/libexpr/nix_api_value.cc
rename to src/libexpr/c/nix_api_value.cc
diff --git a/src/libexpr/nix_api_value.h b/src/libexpr/c/nix_api_value.h
similarity index 100%
rename from src/libexpr/nix_api_value.h
rename to src/libexpr/c/nix_api_value.h
diff --git a/src/libstore/c/local.mk b/src/libstore/c/local.mk
new file mode 100644
index 000000000..35e2bd63d
--- /dev/null
+++ b/src/libstore/c/local.mk
@@ -0,0 +1,17 @@
+libraries += libstorec
+
+libstorec_NAME = libnixstorec
+
+libstorec_DIR := $(d)
+
+libstorec_SOURCES := $(wildcard $(d)/*.cc)
+
+libstorec_LIBS = libutil libstore libutilc
+
+libstorec_LDFLAGS += -pthread
+
+libstorec_CXXFLAGS += -I src/libutil -I src/libstore -I src/libutil/c
+
+$(eval $(call install-file-in, $(d)/nix-store-c.pc, $(libdir)/pkgconfig, 0644))
+
+libstorec_FORCE_INSTALL := 1
diff --git a/src/libstore/c/nix-store-c.pc.in b/src/libstore/c/nix-store-c.pc.in
new file mode 100644
index 000000000..563bd2f94
--- /dev/null
+++ b/src/libstore/c/nix-store-c.pc.in
@@ -0,0 +1,9 @@
+prefix=@prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Nix
+Description: Nix Package Manager - C API
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lnixstorec -lnixutilc
+Cflags: -I${includedir}/nix
diff --git a/src/libstore/nix_api_store.cc b/src/libstore/c/nix_api_store.cc
similarity index 100%
rename from src/libstore/nix_api_store.cc
rename to src/libstore/c/nix_api_store.cc
diff --git a/src/libstore/nix_api_store.h b/src/libstore/c/nix_api_store.h
similarity index 100%
rename from src/libstore/nix_api_store.h
rename to src/libstore/c/nix_api_store.h
diff --git a/src/libstore/nix_api_store_internal.h b/src/libstore/c/nix_api_store_internal.h
similarity index 100%
rename from src/libstore/nix_api_store_internal.h
rename to src/libstore/c/nix_api_store_internal.h
diff --git a/src/libutil/c/local.mk b/src/libutil/c/local.mk
new file mode 100644
index 000000000..fe156e7f3
--- /dev/null
+++ b/src/libutil/c/local.mk
@@ -0,0 +1,15 @@
+libraries += libutilc
+
+libutilc_NAME = libnixutilc
+
+libutilc_DIR := $(d)
+
+libutilc_SOURCES := $(wildcard $(d)/*.cc)
+
+libutilc_CXXFLAGS += -I src/libutil
+
+libutilc_LIBS = libutil
+
+libutilc_LDFLAGS += -pthread
+
+libutilc_FORCE_INSTALL := 1
diff --git a/src/libutil/nix_api_util.cc b/src/libutil/c/nix_api_util.cc
similarity index 100%
rename from src/libutil/nix_api_util.cc
rename to src/libutil/c/nix_api_util.cc
diff --git a/src/libutil/nix_api_util.h b/src/libutil/c/nix_api_util.h
similarity index 100%
rename from src/libutil/nix_api_util.h
rename to src/libutil/c/nix_api_util.h
diff --git a/src/libutil/nix_api_util_internal.h b/src/libutil/c/nix_api_util_internal.h
similarity index 100%
rename from src/libutil/nix_api_util_internal.h
rename to src/libutil/c/nix_api_util_internal.h
diff --git a/tests/unit/libutil/local.mk b/tests/unit/libutil/local.mk
index 536607322..0d0acd4c0 100644
--- a/tests/unit/libutil/local.mk
+++ b/tests/unit/libutil/local.mk
@@ -22,7 +22,7 @@ libutil-tests_EXTRA_INCLUDES = \
 
 libutil-tests_CXXFLAGS += $(libutil-tests_EXTRA_INCLUDES)
 
-libutil-tests_LIBS = libutil-test-support libutil
+libutil-tests_LIBS = libutil-test-support libutil libutilc
 
 libutil-tests_LDFLAGS := -lrapidcheck $(GTEST_LIBS)