elf: Support STB_LOCAL dynamic symbols

local symbols can be resolved statically, they don't have to be
done dynamically, so this is a slight speedup at load time for
produced executables and shared libs.  The musl libc also rejects
any STB_LOCAL symbols for dynamic symbol resolution, so there it
also fixes use of shared libs created by tcc.

arm-link.c

@@ -8,6 +8,7 @@
 #define R_JMP_SLOT  R_ARM_JUMP_SLOT
 #define R_GLOB_DAT  R_ARM_GLOB_DAT
 #define R_COPY      R_ARM_COPY
+#define R_RELATIVE  R_ARM_RELATIVE
 
 #define R_NUM       R_ARM_NUM
 

arm64-link.c

@@ -7,6 +7,7 @@
 #define R_JMP_SLOT R_AARCH64_JUMP_SLOT
 #define R_GLOB_DAT R_AARCH64_GLOB_DAT
 #define R_COPY     R_AARCH64_COPY
+#define R_RELATIVE R_AARCH64_RELATIVE
 
 #define R_NUM      R_AARCH64_NUM
 

c67-link.c

@@ -8,6 +8,7 @@
 #define R_JMP_SLOT  R_C60_JMP_SLOT
 #define R_GLOB_DAT  R_C60_GLOB_DAT
 #define R_COPY      R_C60_COPY
+#define R_RELATIVE  R_C60_RELATIVE
 
 #define R_NUM       R_C60_NUM
 

i386-link.c

@@ -8,6 +8,7 @@
 #define R_JMP_SLOT  R_386_JMP_SLOT
 #define R_GLOB_DAT  R_386_GLOB_DAT
 #define R_COPY      R_386_COPY
+#define R_RELATIVE  R_386_RELATIVE
 
 #define R_NUM       R_386_NUM
 

x86_64-link.c

@@ -8,6 +8,7 @@
 #define R_JMP_SLOT  R_X86_64_JUMP_SLOT
 #define R_GLOB_DAT  R_X86_64_GLOB_DAT
 #define R_COPY      R_X86_64_COPY
+#define R_RELATIVE  R_X86_64_RELATIVE
 
 #define R_NUM       R_X86_64_NUM