Update README section about dlfcn.h

diff --git a/README.md b/README.md
index a750b17..971d589 100644 (file)
--- a/README.md
+++ b/README.md
@@ -125,16 +125,17 @@ contains these and may be used by all packages.
 
 dlopen() and RTLD_* flags
 =================================
 
 dlopen() and RTLD_* flags
 =================================

-<dlfcn.h> declares
+<dlfcn.h> originally declares

 
     enum { RTLD_NOW=0, RTLD_LAZY=1, RTLD_LOCAL=0, RTLD_GLOBAL=2,       RTLD_NOLOAD=4}; // 32-bit
     enum { RTLD_NOW=2, RTLD_LAZY=1, RTLD_LOCAL=0, RTLD_GLOBAL=0x00100, RTLD_NOLOAD=4}; // 64-bit
 
 These differs from glibc ones in that
 
 
     enum { RTLD_NOW=0, RTLD_LAZY=1, RTLD_LOCAL=0, RTLD_GLOBAL=2,       RTLD_NOLOAD=4}; // 32-bit
     enum { RTLD_NOW=2, RTLD_LAZY=1, RTLD_LOCAL=0, RTLD_GLOBAL=0x00100, RTLD_NOLOAD=4}; // 64-bit
 
 These differs from glibc ones in that
 

-1. They are not preprocessor #define:s so cannot be checked for with #ifdef RTLD_GLOBAL (dln.c in ruby does this)
+1. They are not preprocessor #define:s so cannot be checked for with `#ifdef RTLD_GLOBAL`. Termux patches this to
+   #define values for compatibility with several packages.

 2. They differ in value from glibc ones, so cannot be hardcoded in files (DLFCN.py in python does this)
 2. They differ in value from glibc ones, so cannot be hardcoded in files (DLFCN.py in python does this)

-3. They are missing some values (RTLD_BINDING_MASK, RTLD_NOLOAD, ...)
+3. They are missing some values (`RTLD_BINDING_MASK`, `RTLD_NOLOAD`, ...)

 
 
 RPATH, LD_LIBRARY_PATH AND RUNPATH
 
 
 RPATH, LD_LIBRARY_PATH AND RUNPATH