13 files changed, 15 insertions, 38 deletions
diff --git a/Master/texmf-dist/tex/latex/newtx/ly1ntxlf.fd b/Master/texmf-dist/tex/latex/newtx/ly1ntxlf.fd
index 308fb6b1ccc..f3cccce9b76 100644
--- a/Master/texmf-dist/tex/latex/newtx/ly1ntxlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ly1ntxlf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ly1ntxlf.fd}[2021/05/08 v1.0 font definition file for LY1/ntx/lf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ly1ntxosf.fd b/Master/texmf-dist/tex/latex/newtx/ly1ntxosf.fd
index 31495f64721..008f8c64c48 100644
--- a/Master/texmf-dist/tex/latex/newtx/ly1ntxosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ly1ntxosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ly1ntxosf.fd}[2021/05/08 v1.0 font definition file for LY1/ntx/osf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ly1ntxtlf.fd b/Master/texmf-dist/tex/latex/newtx/ly1ntxtlf.fd
index defa93b4cba..2c209fb8225 100644
--- a/Master/texmf-dist/tex/latex/newtx/ly1ntxtlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ly1ntxtlf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ly1ntxtlf.fd}[2021/05/08 v1.0 font definition file for LY1/ntx/tlf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ly1ntxtosf.fd b/Master/texmf-dist/tex/latex/newtx/ly1ntxtosf.fd
index 6ee7c367aa3..5360d0aa3ca 100644
--- a/Master/texmf-dist/tex/latex/newtx/ly1ntxtosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ly1ntxtosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ly1ntxtosf.fd}[2021/05/08 v1.0 font definition file for LY1/ntx/tosf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/newtxtext.sty b/Master/texmf-dist/tex/latex/newtx/newtxtext.sty
index 719ef139455..846b03d90dd 100644
--- a/Master/texmf-dist/tex/latex/newtx/newtxtext.sty
+++ b/Master/texmf-dist/tex/latex/newtx/newtxtext.sty
@@ -1,7 +1,7 @@
 \NeedsTeXFormat{LaTeX2e}
 
-\def\fileversion{1.65}
-\def\filedate{2021/05/16}
+\def\fileversion{1.652}
+\def\filedate{2021/05/22}
 \ProvidesPackage{newtxtext}[\filedate\space v\fileversion]
 
 \message{`newtxtext' v\fileversion, \filedate\space Text macros taking advantage of TeX-Gyre Termes fonts (msharpe)}
diff --git a/Master/texmf-dist/tex/latex/newtx/ot1ntxlf.fd b/Master/texmf-dist/tex/latex/newtx/ot1ntxlf.fd
index 7f423ce6c2e..8065b81eb9c 100644
--- a/Master/texmf-dist/tex/latex/newtx/ot1ntxlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ot1ntxlf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ot1ntxlf.fd}[2021/05/08 v1.0 font definition file for OT1/ntx/lf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ot1ntxosf.fd b/Master/texmf-dist/tex/latex/newtx/ot1ntxosf.fd
index bbcb1546942..2263ac3db89 100644
--- a/Master/texmf-dist/tex/latex/newtx/ot1ntxosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ot1ntxosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ot1ntxosf.fd}[2021/05/08 v1.0 font definition file for OT1/ntx/osf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ot1ntxtlf.fd b/Master/texmf-dist/tex/latex/newtx/ot1ntxtlf.fd
index 3247b8ddca0..72f2cfb9efb 100644
--- a/Master/texmf-dist/tex/latex/newtx/ot1ntxtlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ot1ntxtlf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ot1ntxtlf.fd}[2021/05/08 v1.0 font definition file for OT1/ntx/tlf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/ot1ntxtosf.fd b/Master/texmf-dist/tex/latex/newtx/ot1ntxtosf.fd
index 176bad670fd..a44b5e8ef77 100644
--- a/Master/texmf-dist/tex/latex/newtx/ot1ntxtosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/ot1ntxtosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{ot1ntxtosf.fd}[2021/05/08 v1.0 font definition file for OT1/ntx/tosf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/t1ntxlf.fd b/Master/texmf-dist/tex/latex/newtx/t1ntxlf.fd
index e55c5d8ef71..fe02287b286 100644
--- a/Master/texmf-dist/tex/latex/newtx/t1ntxlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/t1ntxlf.fd
@@ -1,12 +1,11 @@
 \ProvidesFile{t1ntxlf.fd}[2021/05/07 v1.1 font definition file for T1/ntx/lf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
 \fi
+
 \def\ntx@lsfx{}
 \def\ntx@makelsfx{\ifntx@largesc\def\ntx@lsfx{l}\fi}
 \ifdefined\ntx@largescfalse \ntx@makelsfx\fi
diff --git a/Master/texmf-dist/tex/latex/newtx/t1ntxosf.fd b/Master/texmf-dist/tex/latex/newtx/t1ntxosf.fd
index 5f9837d4547..0e5603e7042 100644
--- a/Master/texmf-dist/tex/latex/newtx/t1ntxosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/t1ntxosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{t1ntxosf.fd}[2021/05/07 v1.1 font definition file for T1/ntx/osf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/t1ntxtlf.fd b/Master/texmf-dist/tex/latex/newtx/t1ntxtlf.fd
index bc8fdd1578d..49ab9bb3bb5 100644
--- a/Master/texmf-dist/tex/latex/newtx/t1ntxtlf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/t1ntxtlf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{t1ntxtlf.fd}[2021/05/07 v1.1 font definition file for T1/ntx/tlf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%
diff --git a/Master/texmf-dist/tex/latex/newtx/t1ntxtosf.fd b/Master/texmf-dist/tex/latex/newtx/t1ntxtosf.fd
index 1aec7119a1f..038c9fbb928 100644
--- a/Master/texmf-dist/tex/latex/newtx/t1ntxtosf.fd
+++ b/Master/texmf-dist/tex/latex/newtx/t1ntxtosf.fd
@@ -1,8 +1,6 @@
 \ProvidesFile{t1ntxtosf.fd}[2021/05/07 v1.1 font definition file for T1/ntx/tosf]
 
-\expandafter\ifx\csname ntx@sltrue\endcsname\relax
-  \global\newif\ifntx@sl\global\ntx@sltrue%
-\fi
+\@ifundefined{ifntx@sl}{\global\newif\ifntx@sl\global\ntx@sltrue}{}
 
 \expandafter\ifx\csname ntx@scaled\endcsname\relax
   \let\ntx@scaled\@empty%