From 0563c2a391adf5a2243de4c7d17c9b976cffff60 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Jan 10 2019 03:43:18 +0000
Subject: project: custom config. bootstrapping: added --no-complex support.


---

diff --git a/project/common.mk b/project/common.mk
index c271e2e..b50aea5 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -48,7 +48,7 @@ libc_ldso_files_c   = $(filter %.c, $(libc_ldso_files))
 libc_ldso_files_s   = $(filter %.s, $(libc_ldso_files))
 libc_ldso_files_S   = $(filter %.S, $(libc_ldso_files))
 
-libc_excl_files     = $(libc_crt_files) $(libc_ldso_files)
+libc_excl_files     = $(libc_crt_files) $(libc_ldso_files) $(LIBC_EXCL_FILES)
 libc_core_files     = $(filter-out $(libc_excl_files), $(libc_all_files))
 
 libc_core_files_c   = $(filter %.c, $(libc_core_files))
diff --git a/project/config/cfgdefs.in b/project/config/cfgdefs.in
index c2c4e6f..28f9ec4 100644
--- a/project/config/cfgdefs.in
+++ b/project/config/cfgdefs.in
@@ -4,12 +4,18 @@ LIBC_MAJOR               = @libc_major@
 LIBC_MINOR               = @libc_minor@
 LIBC_MICRO               = @libc_micro@
 
+# build mode
+LIBC_EXCL_FILES          = @libc_excl_files@
+
 # port source directory
 PORT_DIR                 = @port_dir@
 
 # source tree (atomic.h vs. atomic_arch.h)
 CFLAGS_CONFIG           += @libc_source_tree@
 
+# libgcc, libgcc_eh
+LIBC_DEPS               += @libc_deps@
+
 # syscall.h
 build/syscall_h.tag:     build/@libc_syscall_arch@
 
diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 928f46a..574577f 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -1,5 +1,8 @@
 for arg ; do
 	case "$arg" in
+		--no-complex )
+			libc_no_complex=yes
+			;;
 		*)
 			error_msg ${arg#}: "unsupported config argument."
 			exit 2
@@ -81,6 +84,14 @@ cfgdefs_set_libc_options()
 	else
 		libc_source_tree='-D__LIBC_LEGACY_SOURCE_TREE'
 	fi
+
+	if [ _${libc_no_complex:-} = _yes ]; then
+		libc_deps=
+		libc_excl_files='$(filter ./src/complex/%, $(libc_all_files))'
+	else
+		libc_deps='-lgcc -lgcc_eh'
+		libc_excl_files=
+	fi
 }
 
 
@@ -92,6 +103,8 @@ cfgdefs_output_custom_defs()
 			-e 's/@libc_major@/'"$libc_major"'/g'   \
 			-e 's/@libc_minor@/'"$libc_minor"'/g'   \
 			-e 's/@libc_micro@/'"$libc_micro"'/g'   \
+			-e 's/@libc_deps@/'"$libc_deps"'/g'     \
+			-e 's^@libc_excl_files@^'"$libc_excl_files"'^g'   \
 			-e 's/@libc_source_tree@/'"$libc_source_tree"'/g'  \
 			-e 's/@libc_syscall_arch@/'"$libc_syscall_arch"'/g' \
 		"$mb_project_dir/project/config/cfgdefs.in"         \
diff --git a/project/extras.mk b/project/extras.mk
index 73d6b39..42ebf96 100644
--- a/project/extras.mk
+++ b/project/extras.mk
@@ -3,6 +3,7 @@
 
 # libc.so
 SHARED_OBJS      += $(LDSO_OBJS)
+SHARED_LIB_DEPS  += $(LIBC_DEPS)
 
 LDFLAGS_COMMON   += -nostdlib
 LDFLAGS_COMMON   += -Wl,-Bsymbolic-functions
@@ -14,8 +15,6 @@ LDFLAGS_COMMON   += -Wl,--exclude-libs=ALL
 LDFLAGS_COMMON   += -Wl,-e              -Wl,_dlstart
 LDFLAGS_COMMON   += -Wl,--sort-section  -Wl,alignment
 
-SHARED_LIB_DEPS  += -lgcc -lgcc_eh
-
 ifeq ($(CC_BINFMT),ELF)
 LDFLAGS_COMMON   += -Wl,--hash-style    -Wl,both
 endif