[libc] fix lfind old hdrgen

[nickdesaulniers]

Fixes: #114692

[llvmbot]

@llvm/pr-subscribers-libc

Author: Nick Desaulniers (nickdesaulniers)

Changes

Fixes: #114692

---

Full diff: https://github.com/llvm/llvm-project/pull/115760.diff

2 Files Affected:

• (modified) libc/config/linux/api.td (+1-1)
• (modified) libc/spec/posix.td (+3-4)

diff --git a/libc/config/linux/api.td b/libc/config/linux/api.td
index 46523b4ca4b8df..a00e0f61b90df7 100644
--- a/libc/config/linux/api.td
+++ b/libc/config/linux/api.td
@@ -268,7 +268,7 @@ def SetJmpAPI : PublicAPI<"setjmp.h"> {
 }
 
 def SearchAPI : PublicAPI<"search.h"> {
-  let Types = ["ACTION", "ENTRY", "struct hsearch_data"];
+  let Types = ["ACTION", "ENTRY", "struct hsearch_data", "__lsearchcompare_t"];
 }
 
 def SysStatvfsAPI : PublicAPI<"sys/statvfs.h"> {
diff --git a/libc/spec/posix.td b/libc/spec/posix.td
index d4712dc0c5d701..c9399ba6f4d15e 100644
--- a/libc/spec/posix.td
+++ b/libc/spec/posix.td
@@ -100,9 +100,6 @@ def StructStatvfs : NamedType<"struct statvfs">;
 def StructStatvfsPtr : PtrType<StructStatvfs>;
 def RestrictedStructStatvfsPtr : RestrictedPtrType<StructStatvfs>;
 
-// The function pointer type for the predicate for lsearch, lfind
-def LSearchCompareT : NamedType<"__lsearchcompare_t">;
-
 def POSIX : StandardSpec<"POSIX"> {
   PtrType CharPtr = PtrType<CharType>;
   RestrictedPtrType RestrictedCharPtr = RestrictedPtrType<CharType>;
@@ -1577,12 +1574,14 @@ def POSIX : StandardSpec<"POSIX"> {
     ]
   >;
 
+  NamedType LSearchCompareT = NamedType<"__lsearchcompare_t">;
   HeaderSpec Search = HeaderSpec<
     "search.h",
     [], // Macros
     [
         ActionType,
-        EntryType
+        EntryType,
+        LSearchCompareT,
     ], // Types
     [], // Enumerations
     [